Class 5

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 8 Beginning of Settled Life Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 8 Beginning of Settled Life

5th Std EVS 2 Digest Chapter 8 Beginning of Settled Life Tools Textbook Questions and Answers

1. Fill in the blank.

Question a.
Archaeological evidence shows that agriculture first began about 11,000 years ago in Israel and …………. .
(Iran, Iraq, Dubai)
Answer:
Archaeological evidence shows that agriculture first began about 11,000 years ago in Israel and Iraq.

Question b.
The houses at the beginning of the New Stone Age were made of …………… .
(earth, bricks, wattle and daub)
Answer:
The houses at the beginning of the New Stone Age were made of wattle and daub.

2. Answer the following question in brief.

Question a.
What are the three main steps in the process of domesticating a wild animal?
Answer:

1. Capture the wild animal.
2. Taming the wild animal by giving them the training to live with humans.
3. Obtaining useful materials like milk from these animals and training them to work as beasts of burden for the humans.

Question b.
How did some people in the community become skilled craftsmen?
Answer:

1. As the food available was more than needed by the community, some men and women utilised their spare time in experimentation and for using their natural creativity to develop special skills.
2. Persons with such special skills were given to work based on those skills.
3. Thereby a class of skilled craftsmen emerged.

3. Complete the following concept chart.

Question 1.
Complete the following concept chart.

Answer:

4. Write about the usefulness of any five domesticated animals.

Question 1.
Write about the usefulness of any five domesticated animals.
Answer:

• Cow : Cow is a very useful animal. It is domesticated for its milk. Cow-dung was used to smear mud walls and in courtyards. Cow-dung is used to make dung cakes for fuel and also is a very good natural manure for agriculture.
• Goats and Sheep : Sheep is useful for its wool and milk. They are also domesticated for their meat.
• Dog : A very useful and faithful animal. It guards household or village-settlements.
• Horse : A very useful, strong and a swift animal. Its strength is used to draw carriages or to transport heavy
• goods. It is also used in travelling.
• Bullocks : Bullocks are strong and obedient animals. Therefore, they are used to draw carts. They are also used to transport people and heavy objects from one place to another.

5. Which animal is used by the modern police? In what way?

Question 1.
Which animal is used by the modern police? In what way?
Answer:

1. The dog is used by modern police.
2. It is used in the investigation of crimes as a dog can sniff the body odour and blood-stains on the clothes.
3. It leads police to the person who has committed heinous crimes like murder.

Activity :

Question 1.
Visit people in your locality practising five different occupations and collect information about their work.

Environmental Studies Part 2 Standard 5th Solutions Chapter 8 Beginning of Settled Life Additional Important Questions and Answers

Fill in the blanks:

Question 1.

1. When the third step is achieved, the animal is supposed to be completely ……….
2. Domesticating animals and keeping them for our own use is called ……….
3. The …….. is the first animal to have been domesticated.
4. ………..and………… were domesticated next.
5. Dogs were used to help with ………….
6. …….. are credited to have started cultivation.
7. They used ………….. Sticks to sow seeds.
8. People had to stay in one place because of the nature of ………… work.
9. ………………….. production increased considerably after the plough drawn by animals came into use.
10. …………. became the main source of livelihood.
11. People began to worship ……. and various ………. for good crops.
12. People in the village-settlements established some ………. and ……. to manage things.
13. Before agriculture, all men and women were continuously engaged in getting ……….
14. With agricultural production increasing, some men and women began to get ……….. time.
15. They used their spare time for using their natural creativity to develop……… skills.
16. Members with such special skills were given ………. based on those skills.
17. It is believed that in the New Stone Age, ……… made earthen pots and other earthen objects by hand.
18. The farmers in the village-settlements were now producing……….. food.
19. They needed skilled ……………. for tasks like making agricultural implements and repairing them
20. Craftsmen were paid in the form of …………..
21. ………… is an essential item.
22. Salt traders also traded articles they received in exchange of ………..
23. The ………. trade helped in the expansion of trade in the New Stone Age.
24. People responsible for the implementation of these rules became the ………… of village settlements.
25. The chiefs were also entrusted with the …… of the village.
26. The population of the village settlements ………. because food was available in plenty
27. The ……… became permanent and expanded.
28. People began to build ………. houses of sun dried bricks.
29. It appears that the people of the village settlements belonged to a single …………..
30. The entire village-settlement was an ………….. family.
31. A dead person was buried either in the ……….. or in the ……..
32. In the ………… system, it became possible to store food grains.

Answer:

1. domesticated
2. animal husbandry
3. dog
4. goat, sheep
5. hunting
6. uxomen
7. pointed
8. agricultural
9. agricultural
10. agriculture
11. nature, deities
12. rules, customs
13. food
14. spare
15. special
16. work
17. women
18. surplus
19. craftsmen
20. foodgrains
21. salt
22. salt
23. salt
24. chiefs
25. protection
26. grew
27. village-settlements
28. quadrangular
29. clan
30. extended
31. house, courtyard
32. agricultural

Match the following:

Question 1.

Column ‘A’	Column ‘B’
1. Source of livelihood	a. Women
2. Sowing of seeds	b. New Stone Age
3. Earthen pots	c. Protection
4. Moats	d. Agriculture

Answer:

Column ‘A’	Column ‘B’
1. Source of livelihood	d. Agriculture
2. Sowing of seeds	a. Women
3. Earthen pots	b. New Stone Age
4. Moats	c. Protection

Answer each of the following questions in one sentence:

Question 1.
What is animal husbandry?
Answer:
Domesticating animals and keeping them for one’s use is called animal husbandry.

Question 2.
Which is the first animal to have been domesticated?
Answer:
The dog is the first animal to have been domesticated.

Question 3.
Who domesticated the dog?
Answer:
Homo sapiens of the Middle Stone Age domesticated the dog.

Question 4.
How were the dogs used?
Answer:
Dogs were used to help in hunting.

Question 5.
Which animals were domesticated after the dog?
Answer:
The goat and sheep were domesticated after the dog

Question 6.
When and where did agriculture begin?
Answer:
Archaeological evidence is available to show that agriculture first began about 11,000 years ago in Israel and Iraq.

Question 7.
Who are given the credit to have started cultivation?
Answer:
Women are credited to have started cultivation

Question 8.
What did they use to sow seeds?
Answer:
They used pointed sticks to sow seeds.

Question 9.
How did the agricultural production increase considerably?
Answer:
Agricultural production increased considerably after the plough driven by animals came into use.

Question 10.
What was the main source of livelihood for people in the New Stone Age?
Answer:
Agriculture was the main source of livelihood for the people in the New Stone Age.

Question 11.
What did the people do in order to grow good crops?
Answer:
People began to worship nature and various deities to grow good crops.

Question 12.
What gained importance in the village settlement?
Answer:
Essential things like sharing of agricultural tasks and water resources and the security of the village-settlements gained importance.

Question 13.
How did the New Stone Age women make earthen pots?
Answer:
The New Stone Age women made earthen pots and other earthen objects by hand.

Question 14.
Why were the craftsmen needed?
Answer:
Craftsmen were needed for tasks like making agricultural implements and repairing them.

Question 15.
How were the craftsmen paid?
Answer:
The craftsmen were paid in the form of food grains or other articles.

Question 16.
What is the barter system?
Answer:
Buying and selling articles by exchanging goods for goods is called barter system.

Question 17.
What was an essential item in the village settlement?
Answer:
Salt was an essential item in the village settlement.

Question 18.
How did the salt traders trade?
Answer:
Salt traders traded articles they received in exchange of salt.

Question 19.
Why did the village community lay down rules?
Answer:
The village community laid rules for mutual co-operation in order to keep this system of trade and distribution of resources running smoothly.

Question 20.
Who became the chiefs of village settlements?
Answer:
People responsible for the implementation of these rules became the chiefs of villagesettlements.

Question 21.
Who was entrusted with the protection of the village?
Answer:
The chiefs were also entrusted with the task of protection of the village.

Question 22.
Why did they build protective walls and moats around the village-settlements?
Answer:
They built protective walls and moats around the village-settlements to protect them selues from floods, wild animals and outsiders who stole the village cattle.

Question 23.
What were the houses at the beginning of New Stone Age made of?
Answer:
Houses at the beginning of the New Stone Age were made of wattle and daub?

Question 24.
Why were there differences in the style of constructing houses?
Answer:
Regional differences are seen in the styles of constructing houses, depending on the local climate.

Question 25.
Why did the population of village settlements grow?
Answer:
The population of village-settlements grew because food was available in plenty.

Give reasons for the following:

Question 1.
The stick used for sowing was weighed in the centre using a perforated stone.
Answer:
In order to dig deeper into the soil to sow the seeds, the stick was weighted in the centre using a perforated stone.

Question 2.
Before agriculture, men and women in the community were continuously busy.
Answer:

1. Before agriculture, people obtained food by hunting and gathering.
2. But this food could not be stored for a long time.
3. Therefore, all men and women in the community were continuously engaged in acquiring food.

Question 3.
Walls and moats were built around the village settlement.
Answer:
Protective walls and moats were built around the village-settlements to protect them from floods, wild animals and outsiders who stole village cattle.

Question 4.
The village-settlements grew.
Answer:
i. The population of the village-settlements grew because food was available in plenty after agriculture
ii. They also built bigger houses to accommodate their expanding population.

Question 5.
The entire village-settlement was an extended family.
Answer:

1. It appears from the plans of the houses and the village-settlements that people staying there belonged to a single class.
2. It means that they were all related to one another.
3. Thus, the entire village-settlement was an extended family

Question 6.
Women and men began to get spare time to develop special skills.
Answer:

1. In the agricultural system, it became possible to store foodgrains for a long period.
2. There was sufficient food for the community.
3. Therefore, women and men began to get spare time to use their natural creativity to develop special skills.

Question 7.
People began to worship nature and various deities.
Answer:
i. Agriculture became the main source of livelihood in the New Stone Age period.
ii. Thus, people began to worship nature and various deities for good crops.

Question 8.
The farmers needed skilled craftsmen.
Answer:
i. Farmers in the village-settlements were producing surplus food.
ii. Therefore, they needed skilled craftsmen for making agricultural implements and repairing them.

Question 9.
A dead person was buried either in the house or in the courtyard.
Answer:
The people thought that the dead person’s bond with family should not get cut off after death.

Answer the following questions in brief:

Question 1.
How was cultivation carried out by women?
Answer:

1. Women are credited to have started cultivation.
2. They used pointed sticks to sow seeds.
3. In order to help dig deeper into the soil, the stick was weighted in the centre using a perforated stone.

Question 2.
How did a social system based on agriculture came into existence?
Answer:

1. Essential things like sharing of agricultural tasks and water resources and the security of the village-settlement gained importance.
2. People in the village-settlements established some rules and customs to manage these things.
3. Thus, a social system based on agriculture came into existence.

Question 3.
How was barter system established?
Answer:

1. When the farmers in the village-settlements
2. produced surplus food, they felt the need for skilled craftsmen who would provide them with agricultural implements and also repair them.
3. Such craftsmen were paid in the form of food grains or other articles. The craftsmen also purchased the required raw material in the form of foodgrains and other useful articles.
4. Thus, buying and selling by exchanging goods for goods called barter system was established.

Question 4.
Describe the structure of houses in the New Stone Age.
Answer:

1. The houses at the beginning of the New Stone Age were made of wattle and daub i.e. the walls were screens woven from sticks or bamboo and plastered with mud or cow dog.
2. Later when the population in the village ettlement grew, people began to build quadrangular” houses of sun-dried bricks. These houses were also bigger and had more than one room.
3. Regional differences are seen in the styles of constructing houses, depending on the local climate.

Question 5.
Describe the ritual of burying the dead in the village settlements.
Answer:
i. A dead person was buried either in the house or in the courtyard with the idea that the person’s bond with the family should not get cut off even after death.
ii. Families would also bury various articles with the dead person for them to use even after death.

Question 7.
How did the village administrative system came into being?
Answer:

1. The village community made rules for mutual co-operation in order to keep trade running smoothly.
2. People responsible for the implementation of these rules became the chiefs of village settlements
3. These chiefs were also entrusted with the protection of the village.
4. This is how the village administrative system came into being.

Glossary :

1. entrusted : assigned the responsibility to doing something to (someone)
2. archaeological : of history
3. implementation : put into effect
4. deities : gods and goddesses
5. moats : a deep, wide ditch surrounding a house.
6. wattle : and
7. daub : material used in building walls.
8. perforated : pierced with a hote.
9. accommodate : provide sufficient space for.
10. surplus : extra.
11. abundance : a large quantity fo something
12. experimentation:  procedure.
13. complied : meet specified standards.
14. quadrangular : having four sides

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 25 Community Health and Hygiene Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 1 Chapter 25 Community Health and Hygiene

5th Std EVS 1 Digest Chapter 25 Community Health and Hygiene Textbook Questions and Answers

1. Fill in the blank.

Question a.
A healthy and wholesome life leads to feelings of …………….. .
Answer:
A healthy and wholesome life leads to a feeling of friendship.

Question b.
Constant presence of tobacco in the digestive organs can lead to cancer of ………….. .
Answer:
Constant presence of tobacco in the digestive organs can lead to cancer of (any) digestive organs.

Question c.
…………… leads to diseases of the liver, intestines and urinary bladder
Answer:
Alcoholism leads to diseases of the liver, intestines and urinary bladder

Question d.
The most important factor in the country’s progress and development are its ……………. .
Answer:
The most important factor in the country’s progress and development are its people.

Question e.
Good community ………… can be achieved through habits of hygiene and good health.
Answer:
Good community health and hygiene can be achieved through habits of hygiene and good health.

2. True or false? Correct the wrong statement.

Question a.
Pollution, squalor, epidemics, addictions, and insect-borne diseases are all beneficial for community health.
1. True
2. False
Answer:
Pollution, squalor. epidemics. addictions and insect-borne diseases are all threats to the community

Question b.
There is a ban on spitting in public places.
1. True
2. False
Answer:
1. True.

Question c.
A nutritious diet, personal hygiene, exercise and pursuit of hobbies lead to excellent health.
1. True
2. False
Answer:
1. True

Question d.
We cannot live a wholesome life if we take care of our health.
1. True
2. False
Answer:
We can live a wholesome life if we take care of our health

3. Answer the following question.

Question a.
How can you achieve excellent health?
Answer:
Nutritious food. personal cleanliness. exercise and pursuit of hobbies leads to achievement of excellent health.

Question b.
What factors are a threat to community health?
Answer:
Pollution, squalor, epidemics of infectious diseases. addiction, insect-borne diseases, malnutrition are the factors that cause a threat to community health.

Question c.
What are the ill effects of chewing tobacco?
Answer:

1. If tobacco is consumed, there are ulcers in the mouth. Ulcers develop into bigger wounds and they are later turned into tumours.
2. Oral cancer, i.e. cancer of the mouth may be formed.
3. Tobacco entering into the digestive system cause cancer of any of the digestive organs. It also leads to various complaints of the digestive system.
4. A person with cancer has to undergo painful treatment. It can lead to death.

Question d.
What are the ill effects of alcoholism?
Answer:

1. Alcohol acts on the brain of a person. Person becomes drowsy and confused.
2. Alcohol makes a person lose control over one’s actions.
3. Alcohol causes diseases of the liver, intestines and kidney, and urinary bladder.

Use your brain power

Question 1.
What bad habits will you guard against while trying to achieve your aim or interest in life?
Answer:
Do it yourself

Activity :

Question 1.
Write and present a short play on preventing addictions in society.

Environmental Studies Part 1 Standard 5th Solutions Chapter 25 Community Health and Hygiene Additional Important Questions and Answers

Fill in the blank with the correct answers from the option given below:

Question 1.
Pollution, squalor, epidemics of infectious diseases and insect borne diseases, addictions are all …………………. to community health.
(a) encouragement
(b) threats
(c) addictions
Answer:
(b) threats

Question 2.
It is a ………………… offence to spit in public places.
(a) legal
(b) illegal
(c) criminal
Answer:
(a) legal

Question 3.
If we take care of our health it is possible to lead a ……………… life.
(a) happy
(b) wholesome
(c) comfortable
Answer:
(a) happy

Question 4.
Cigarettes, bidis, masheri are …………… products.
(a) factory
(b) modern
(c) tobacco
Answer:
(c) tobacco

Question 5.
An entire family is destroyed due to …………………. of alcohol.
(a) addiction
(b) consumption
(c) solution
Answer:
(a) addiction

Question 6.
Addiction of tobacco can cause diseases like ………….
(a) tuberculosis
(b) cancer
(c) malaria
Answer:
(b) cancer

Question 7.
We must make ………….. to ensure good health for all.
(a) efforts
(b) pollution
(c) ugliness
Answer:
(a) efforts

Question 8.
To nurture community health is to ………… the general public from disease.
(a) avoid
(b) protect
(c) encourage
Answer:
(b) protect

Question 9.
People are urged in every possible way to keep their ………………. clean.
(a) surroundings
(b) body
(c) mind
Answer:
(a) surroundings

Question 10.
If we take care of our health, it is possible for us to lead a ……………… life.
(a) complete
(b) incomplete
(c) wholesome
Answer:
(c) wholesome

Question 11.
We see many people …………. tobacco in different ways.
(a) consuming
(b) destroying
(c) shunning
Answer:
(a) consuming

Question 12.
Drinking alcohol has …………… effects on the body.
(a) good
(b) bad
(c) adverse
Answer:
(c) adverse

Question 13.
Addiction to alcohol is called ………….. .
(a) fanatism
(b) alcoholism
(c) lunatism
Answer:
(b) alcoholism

Question 14.
……………. makes a person drowsy and confused.
(a) Alcohol
(b) Milk
(c) Coffee
Answer:
(a) Alcohol

Question 15.
………………….. causes diseases of the liver, intestines and urinary bladder.
(a) Fanatism
(b) Alcoholism
(c) Socialism
Answer:
(b) Alcoholism

Question 16.
Addiction to tobacco or alcohol are both very ……… habits.
(a) good
(b) bad
(c) ugly
Answer:
(b) bad

Question 17.
Never be ………… about health.
(a) negative
(b) assertive
(c) negligent
Answer:
(c) negligent

Question 18.
The family of an addict gets deprived of health and happiness is …………
(a) ruined
(b) built
(c) restored
Answer:
(a) ruined

Question 19.
Tobacco, drugs and alcohol produce a state of …………… .
(a) peace
(b) aggression
(c) intoxication
Answer:
(c) intoxication

Question 20.
Learn to say ………… firmly in order to avoid bad habits.
(a) Yeas
(b) No
(c) OK
Answer:
(b) No

From the actions given below, mark those that are harmful with a cross (✗) and healthy with a (✓) marks:

Question 1.

1. Burning of tyres. [ ]
2. Spitting anywhere on the road. [ ]
3. Using public toilets [ ]
4. Looking after domestic animals [ ]
5. Following doctor’s instructions in cases of infectious diseases [ ]
6. Washing your hands before a meal or snack. [ ]
7. Throwing the garbage from your house on to the road. [ ]

Answer:

1. Burning of tyres. [✗]
2. Spitting anywhere on the road. [ ✗]
3. Using public toilets [✓]
4. Looking after domestic animals [✓]
5. Following doctor’s instructions in cases of infectious diseases [✓]
6. Washing your hands before a meal or snack. [✓]
7. Throwing the garbage from your house on to the road. [✗]

Answer in one sentence:

Question 1.
What leads to good health?
Answer:
Nutritious food, personal hygiene, exercise and pursuit of hobbies lead to excellent health and good personal development.

Question 2.
How is mass media used to ensure community health?
Answer:
Mass media are used under community welfare programmes to educate people about issues such as taking care of drinking water and food.

Question 3.
How can we lead a wholesome life?
Answer:
If we take care of our health, it is possible for us to lead a wholesome life.

Question 4.
What happens when people of a society live a healthy and wholesome life?
Answer:
If people of a society live a healthy and wholesome life, social tensions also decrease and feelings of friendship can be nurtured.

Question 5.
What is addiction?
Answer:
At first, a person may consume drugs, alcohol or tobacco casually, but later he becomes dependent and cannot give up the habit. This stage is called addiction.

Question 6.
What happens to people when they are tobacco addicts?
Answer:
When people develop this habit, they become restless if they do not get tobacco. They are not able to pay attention to anything else as they have to have tobacco in their mouth at all times.

Question 7.
Why should we stay away from drugs, tobacco and alcohol?
Answer:
Addiction to drugs, alcohol or tobacco eventually kills the person. So everyone should be aware of the ill-effects of these addictions and strictly stay away from them.

Question 8.
How can we help an addict?
Answer:
An addict should be given the help of counsellors or doctors immediately to rid the person of the habit.

Question 9.
What is the only solution to stay away from bad habits?
Answer:
Learning to say ‘NO! firmly is the best way to stay away from bad habits.

Give reasons:

Question 1.
Burning tyres is not good.
Answer:
Tyres are made of rubber. When rubber burns it gives out many gases which are poisonous. These gases spread in the air and when inhales these gases affect the health of the people. Burning tyres also causes pollution of air. This will also affect birds and animals. Hence it is not good to burn tyres.

Question 2.
One should not spit on the road.
Answer:
Spitting on the road spreads infectious diseases if the spit is of a person already suffering from a disease. The spit dries up and it flies in the air and when we inhale this air we get the disease. Hence spitting on the road is not good.

Question 3.
One should not throw garbage on the road.
Answer:
Garbage thrown on the road decays and many flies sit on this. Even water gets stagnated due to garbage and mosquitoes breed there. Decaying garbage emits a foul smell and makes the place dirty. Hence this can affect the people’s health.

Question 4.
State whether true or false? Correct the wrong statements:

1. Alcoholism causes diseases of liver, intestines, and urinary bladder.
2. Eating mawa, pan masala are good for health.
3. Community welfare programmes educate people about safe drinking water and food.
4. Ban on smoking in public places helps in preventing the bad effects of passive smoking

Answer:

1. True
2. False. Eating pan masala is bad for health.
3. True
4. True

Some important factors that are harmful for community health are mentioned below. Some suggested remedies are mentioned in the next box. Add other ill effects and remedies to the respective boxes.

Question 1.


Answer:

What’s the solution?

Question 1.
You have seen one of your friend’s brother smoking and drinking alcohol and he is slowly becoming addicted.
Answer:
If you see your friend’s, brothers becoming addicted with smoking and drinking alcohol, you should tell this to his parents. Then your friend’s, brother should be taken to a doctor or councellor to rid him of the habit. The family members and friend should support him and help him to give up the habit. Once he is rid of the habit, he should engage himself in some sports or other hobbies.

Question 2.
There is a slum area is your locality where there is lot of filth, dirt and people are living in squalor.
Answer:
People should be educated about the need to maintain hyginic conditions. The students can plan an awareness drive and do street plays and people should be educated about how they should keep their surroundings clean.

+

Glossary :

1. malnutrition – faulty nutrition due to inadequate or unblanced intake of nutrients
2. envy – a feeling of discontent aroused by someone’s qualities etc.
3. tuberculosis – a communicable disease that affects the • lungs caused by tubercle bacillus.
4. epidemic – an outbreak of disease affecting a large population
5. infectious – communicable by infection
6. wholesome – promoting healthy body
7. restless – showing unrest of mind.
8. passive smoking – involuntary inhalations of tobacco smoke by a nonsmoker,
9. remedies – treatment that relieves or cures a disease.

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 7 From Shelters to Village-settlements Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 7 From Shelters to Village-settlements

5th Std EVS 2 Digest Chapter 7 From Shelters to Village-settlements Tools Textbook Questions and Answers

1. Answer the following question in one sentence.

Question a.
Which animals did the Homo sapiens mainly hunt?
Answer:
The Homo sapiens mainly hunted small animals like the wild bear, deer, mountain goat and sheep.

Question b.
What is the characteristic of the New Stone Age?
Answer:
The beginning of cultivation is a characteristic of the New Stone Age culture.

2. Give reasons for the following.

Question a.
The diet of Homo sapiens underwent a change.
Answer:
The climate underwent change and became warmer.
Big animals like mammals were on the way to extinction. Therefore, the diet of the Homo sapiens underwent a change.

Question b.
Homo sapiens needed to stay in one place over longer periods of time.
Answer:

1. It was no longer necessary to wander from place to place in search of food.
2. They moved their camps to different places according to seasonal changes in climate. Thus, the Homo sapiens stayed in one place over a longer period of time.

3. Observe the reconstructed picture of a Middle Stone Age seasonal camp and answer the following.

Question a.
Describe the structure of the houses in the picture.
Answer:
The roof is inclining and is of thatched grass.

Question b.
What materials are used to construct the houses?
Answer:
Grass and wood have been used to construct the houses.

Question c.
What kind of jobs could the people in the seasonal camps have been doing?
Answer:
The people at the seasonal camp were engaged in fishing, agriculture, hunting, and making small boats.

4. Write about the effects on your life, of the seasonal changes in weather.

Question 1.
Write about the effects on your life, of the seasonal changes in weather.
Answer:
The seasonal changes in weather result in changes in my clothing. I wear warm clothes during winter and light cotton clothes in summer.
The seasonal changes in climate make me sick sometimes and I am forced to take medicines.
I cannot go out and play games with my friends in the rainy season.

5. Compare the New Stone Age village with a modern village.

Question 1.
Compare the New Stone Age village with a modern village.
Answer:

New Stone Age village	Modern village
1. New Stone Age village was primitive as it was an early village-settlement.	1. Modern village is much developed as it underwent many changes over a period of time.
2. New Stone Age village was in remote areas and had no contact with the outside world.	2. Modern villages are well-connected with the outside world with the means of transport and communication.
3. Human beings lived in huts.	3. Human beings live in constructed houses.
4. Agriculture, animal husbandry, and fishing were the main activities of the villagers.	4. Besides agriculture, animal husbandry, and fishing, many other activities are undertaken by the villagers with the help of machines.

Activities :

a. Construct models of different types of houses.
b. Visit agricultural farms and collect information of the various agricultural tasks that farmers have to do.
c. Visit five different types of houses in your locality and collect information about the materials used in the construction of those houses.
d. With your teacher’s help, observe the continents shown on a world map or a globe and write short notes about them.

Environmental Studies Part 2 Standard 5th Solutions Chapter 7 From Shelters to Village-settlements Additional Important Questions and Answers

Fill in the blanks :

Question 1.

1. The Neanderthals could protect themselves from the freezing temperatures because they wore ……… clothing and made
2. They used animal hides to erect ………. inside the caves for warmth
3. They also built………………… in the open.
4. In the Middle Stone Age groups of Homo sapiens established …………… all over the world.
5. At that time, the climate was getting …………….
6. With the change in environment, the ……….. of the Homo sapiens also changed.
7. Big animals like mammoth were on the way to…………….. .
8. The ………………… were hunted on a large scale.
9. Homo sapiens had largely turned to …………………… with hunting.
10. Homo sapiens hunted. ……… animals like boar, deer, mountain goat and sheep.
11. The changed diet pattern enabled the groups of Homo sapiens to………………. to faraway regions.
12. They moved their camps to different places according to ……………………. changes.
13. The Homo sapiens harvested seasonal wild grains and gathered seasonal and ………
14. They would find out the best seasons for ……………
15. By observation, they discovered the best ……………. grounds.
16. They ……………… in one place for longer periods.
17. They cleared jungles by felling trees and set up their ……… camps in the clearings.
18. The ways of life of …………………….. in the New Stone Age was completely different from that of humans in the Old Stone Age.
19. In the New Stone Age, humans became …………… of foodgrains.
20. The beginning of ……………….. is a characteristic of the culture of the New Stone Age.
21. In the ……………. way of life, it is necessary to keep moving all the time.
22. Agriculture made it possible to ………………… food and use it over a long period.
23. ………….. made it necessary to stay in one place.
24. People established …………. settlements and lived in them generation after generation.
25. In the Middle Stone Age, the climate was getting ………….
26. The Neanderthals used animal…………… to erect tents inside the caves for warmth.

Answer:

1. leather, fire
2. tents
3. huts
4. camps
5. warmer
6. diet
7. extinction
8. mammoth
9. fishing
10. smaller
11. oam
12. seasonal
13. fruits, roots
14. fishing
15. hunting
16. stayed
17. seasonal
18. humans
19. producers
20. cultivation
21. hunting, gathering
22. store
23. agriculture
24. permanent
25. warmer
26. hides

Answer each of the following questions in one sentence:

Question 1.
Why did the Neanderthals live in caves?
Answer:
The Neanderthals lived in caves because at that time the climate in Europe was extremely cold.

Question 2.
How did the Neanderthals protect themselves from the extreme cold climate?
Answer:
To protect themselves from the freezing temperature, the Neanderthals made fire for warmth and wore leather clothing.

Question 3.
What did the Neanderthals do to their caves to protect themselves from the freezing temperature?
Answer:
To protect themselves from the freezing temperature, they used animal hides to erect tents inside the caves for warmth.

Question 4.
Where did they live when it was warm?
Answer:
They built huts in the open to live when it was warm.

Question 5.
Where did the Middle Stone Age man establish their camps?
Answer:
The Middle Stone Age man established their camps all over the world.

Question 6.
Why did they establish their camps all over the world?
Answer:
As the climate was getting warmer and the environment was changing their lifestyle and diet were also changing and this enabled them establish their camps all over the world.

Question 7.
How did a huge animal like the mammoth get extinct?
Answer:
A huge animal like the mammoth got extinct because mammoths were hunted on a large scale.

Question 8.
Which smaller animals did the Middle Stone Age man hunt?
Answer:
The Middle Stone Age man hunted smaller animals like boar, deer, mountain goat and sheep.

Question 9.
What enabled the Homo sapiens to travel to faraway regions?
Answer:
Their changed diet pattern enabled groups of Homo sapiens to roam to faraway regions.

Question 10.
Why did the Homo sapiens move their camps to different places?
Answer:
The Homo sapiens moved their camps to different places according to the seasonal changes.

Question 11.
Other than hunting, how did the Homo sapiens acquire their food?
Answer:
Other than hunting, the Homo sapiens harvested seasonal wild grains and gathered seasonal fruits and roots.

Question 12.
Why did the Homo sapiens begin to fell trees?
Answer:
The Homo sapiens felled trees to clear the jungles and set up their seasonal camps in the clearings

Question 13.
What enabled the New Stone Age man to establish permanent village-settlements?
Answer:
The nature of agricultural work made it possible for the New Stone Age man to establish permanent village-settlements.

Question 14.
In which way of life is it necessary to keep moving?
Answer:
In the hunting and gathering way of life, it is necessary to keep moving all the time.

Question 15.
According to the climate, what work was done by the Homo sapiens?
Answer:
According to the climate, fishing and hunting was the work done by Homo sapiens.

Give reasons for the following :

Question 1.
Homo sapiens had largely turned to fishing.
Answer:
As the mammoths became extinct due to hunting, the Homo sapiens turned to fishing.

Question 2.
Homo sapiens needed to stay in one place over a longer period of time.
Answer:
i. By observation of nature, the Homo sapiens discovered and learnt about the best seasons for fishing and the best hunting ground.
ii. For this reason, they needed to stay in one place for a longer period of time.

Question 3.
People established permanent village settlements.
Answer:
i. The nature of agricultural work made it necessary to stay in one place.
ii. Therefore people established permanent village-settlements to live in them generation after generation

Question 4.
By the time of the Middle Stone Age, big animals like mammoths were on the way to extinction.
Answer:
Due to the changing environment and also because they were hunted on a very large scale, big animals like mammoths were on the way to extinction by the time of the Middle Stone Age.

Answer each of the questions in brief :

Question 1.
Why did the hunting pattern of the Homo sapiens change with time?
Answer:

1. With the mammoth becoming extinct, the Homo sapiens had to turn to fishing.
2. He also hunted smaller animals like wild boar, deer, mountain goat and sheep.
3. Thus, the hunting pattern of the Homo sapiens changed with time.

Question 2.
How did the Homo sapiens discover the best hunting grounds and fishing seasons?
Answer:
By observation of nature and using this knowledge to their advantage, the Homo sapiens discovered the best season for fishing and also the best hunting grounds.

Question 3.
How and why did the Homo sapiens clear the jungle?
Answer:
i. For fishing and hunting in one particular region, the Homo sapiens needed to stay in one place for longer periods.
ii. So they cleared the jungles by felling trees and set up their seasonal camps in the clearings.

Question 4.
Why did the people of the New Stone Age establish permanent village-settlements and lived in them generation after generation?
Answer:

1. In hunting and gathering way of life, it is necessary to keep moving all the time.
2. However, agriculture made it possible to store food and use it over a longer period. Hence, their need to move constantly diminished.
3. The nature of agricultural work was such that they had to stay in one place.
4. Therefore people established permanent village-settlements and lived in them generation after generation.

Question 5.
How did the Neanderthals protect themselves from the cold?
Answer:

1. The Neanderthals mainly lived in caves.
2. They protected themselves from the cold by wearing leather clothes and making use of fire.
3. They also used animal hides to erect tents inside the caves for warmth.
4. This is how the Neanderthals protected themselves from the cold.

Question 6.
Why was there no need to keep moving constantly in the New Stone Age?
Answer:

1. The way of human life in the New Stone Age was completely different as compared to the life in the Old Stone Age and Middle Stone Age.
2. Humans became producers of food and started cultivating the land.
3. Agriculture made it possible to store food and use it over a longer period.
4. Therefore, there was no need for humans in the New Stone Age to constantly move from one place to another.

Glossary :

1. dietary : related to food
2. warmth : the quality or sensation of being warm.
3. extremely : very severe
4. faraway : distant in space and time.
5. felling : cutting down
6. scorching : burning
7. concrete : a building material made from a mixture of gravel, sand, cement and water
8. subsidiary : less important than but related to something
9. progre
10. ssive : proceeding gradually or in stages.

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 6 Stone Age: Stone Tools Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 6 Stone Age: Stone Tools

5th Std EVS 2 Digest Chapter 6 Stone Age: Stone Tools Textbook Questions and Answers

1. Fill in the blank.

Question a.
That period, of which the tools that we find are mainly made from stone, is called the ………………….. .
(Copper Age, Iron Age, Stone Age)
Answer:
That period, of which the tools that we find are mainly made from stone, is called the Stone Age.

Question b.
………………. near Nashik is a well-known Old Stone Age site in Maharashtra.
(Gangapur, Sinnar, Chandwad)
Answer:
Gangapur near Nashik is a well-known Old Stone Age site in Maharashtra.

2. Find out the odd pair from the following.

Question 1.
Find out the odd pair from the following.
a. Rajasthan – Bagor
b. Madhya Pradesh – Bhimbetka
c. Gujarat – Langhnaj
d. Maharashtra – Bijapur
Answer:
d. Maharashtra – Bijapur

3. Answer the following question in brief.

Question a.
How did man use the percussion technique?
Answer:
1. The man in Old Stone Age used the percussion technique to make stone tools.
2. Percussion technique involves beating or striking one large pebble against another to obtain stone flakes.

Question b.
What revolution was brought about by Homo sapiens in the tool-making technique?
Answer:

1. The Homo sapiens devised a technique of obtaining long and narrow blades of stone.
2. He made knife, scraper, borer and chisel from these long blades.
3. He used ivory and rare stones of the quartz variety for making tools and other articles.

4. Compare the tools from all the three periods of the Stone Age.

Question 1.
Compare the tools from all the three periods of the Stone Age.
Answer:

Old Stone Age	Middle Stone Age	New Stone Age
1. Tools were crude as these made by the percussion technique	1. The quality of tools improved. Homo sapiens brought about a revolution in technique of making tools.	1. The tools were polished and had smooth and shiny finish as new type of tool-making technique was developed.
2. Chopper, hand-axe and clearer were made.	2. Different tools were used for different kinds of work.	2. Tools were mainly made for agricultural work as hunting had become a secondary activitiy.
3. Large stones and their flakes were rather heavy and odd in size.	3. Tools were light weight, durable proportionate and symmetrical.	3. Tools were light weight, durable, proportionate, symmetrical and efficient.

5. Which of the following modern machines has stone grinders?

Question 1.
Which of the following modern machines has stone grinders?
a. Mixer
b. Flour mill
c. Juicer
Answer:
b. Flour mill

6. Show the following places on the map of India.

Question 1.
Show the following places on the map of India.
a. A site of the Old Stone Age in Maharashtra.
b. A river basin with New Stone Age sites.
c. A site of the Middle Stone Age in Madhya Pradesh.
Answer:
a. A site of Old Stone Age in Maharashtra : Gangapur
b. A river basin with New Stone Age site : Basin of river Ganga.
c. A site of Middle Stone Age in Madhya Pradesh: Bhimbetka

Activity :

Question 1.
Visit various industries in your locality and collect information about the tools used there. Make a chart by classifying those tools.

Environmental Studies Part 2 Standard 5th Solutions Chapter 6 Stone Age: Stone Tools Additional Important Questions and Answers

Fill in the blanks:

Question 1.

1. Apes like the chimpanzee also used ………………. to break seeds and nuts.
2. Apes like the chimpanzee used ……………. to stir the ants out from ant hills to catch them.
3. Early humans too, used bones, stones, twigs and sticks as
4. Humans learnt that they could ………… rods, bones sticks and stones into tools to carry out their tasks more efficiently.
5. They also learnt they could give their tools any …………. they desired.
6. Humans made tools thousands of years ago, but only the …………. tools can be found today.
7. The Stone Age is divided into ……… periods.
8. Palaeolithic Age meAnswer:……….. Stone Age.
9. Mesolithic Age meAnswer:…………… Stone Age.
10. Neolithic Age meAnswer:……….. Stone Age
11. Homo habilis and Homo erectus belonged to the ……………… Stone Age.
12. Old Stone Age man used ………….. techniques to make tools.
13. The first tools made in the Old Stone Age were ……………..
14. ………. were tools with only one side having a sharp edge.
15. Choppers were used for ………………… nuts or bones
16. Tools like the hand-axe and cleaver were made by ………
17. Homo erectus could……………… visualize his tools even before he actually shaped them.
18. The Neanderthal Man made further ……….. in tool – making techniques.
19. Homo sapiens brought about a ….. in the technique of making tools.
20. He devised a technique of obtaining long and narrow ……….. of stone.
21. Groups of Homo sapiens began to build ………… and live in them.
22. They also started celebrating …………… festivals.
23. Homo sapiens started using ornaments to ……….. themselves.
24. ……………. were made from shells, bones and the teeth of animal.
25. Fossils of a human skull and the …………….. bone of an Old Stone Age woman were found on the bank of the Narmada.
26. A fossilized skull of a ……………… from the Stone Age was found at a village near Puducherry.
27. Gangapur is on the banks of the ……………… river.
28. Middle Stone Age man domesticated the …………….
29. ……………………. started to harvest food grains that grew in the wild and to domesticate animals.
30. In the New Stone Age, the stone tools were ………….. to give a smooth and shiny finish.
31. In the New Stone Age, ……………….. was no more a major means of obtaining food.
32. A……………….. is large/broad bladed axe.
33. Tools like the hand-axe and cleaver were made by ……………..
34. Groups of …….. had begun to build huts and live in them.

Answer:

1. tones
2. sticks
3. tools
4. sharpen
5. shape
6. stone
7. three
8. old
9. middle
10. new
11. old
12. percussion
13. crude
14. choppers
15. breaking
16. Homo erectus
17. mentally
18. progress
19. revolution
20. blades
21. huts
22. social
23. adorn
24. beads
25. collar
26. child
27. Godavari
28. dog
29. Homo sapiens
30. polished
31. hunting
32. clearer
33. Homo erectus
34. Homo sapiens

Match the columns :

Question 1.

Column ‘A’	Column ‘B’
1. Fossil of a human skull	a. Along the Ganga river in South India
2. Fossil of a child’s skull	b. Afghanistan and Sri Lanka
3. New Stone Age site in India	c. Hoshangabad in Madhya Pradesh
4. Remains of Old Stone Age	d. Patane in Jalgaon district in Maharashtra
5. Site of Middle Stone Age	e. A village near Puducherry
6. Knife and sickle	f. Homo erectus
7. Antlers used as hammer	g. Homo sapiens
8. Choppers and scrappers	h. Mesolithic Age
9. Domesticated animals	i. Old Stone Age man

Answer:

Column ‘A’	Column ‘B’
1. Fossil of a human skull	c. Hoshangabad in Madhya Pradesh
2. Fossil of a child’s skull	e. A village near Puducherry
3. New Stone Age site in India	a. Along the Ganga river in South India
4. Remains of Old Stone Age	b. Afghanistan and Sri Lanka
5. Site of Middle Stone Age	d. Patane in Jalgaon district in Maharashtra
6. Knife and sickle	g. Homo sapiens
7. Antlers used as hammer	f. Homo erectus
8. Choppers and scrappers	i. Old Stone Age man
9. Domesticated animals	h. Mesolithic Age

Answer the following questions in one sentence each:

Question 1.
What did apes like the chimpanzees use to break seeds and nuts?
Answer:
Apes like the chimpanzees used stone to break seeds and nuts.

Question 2.
For what purpose did the apes like the chimpanzees use sticks?
Answer:
Apes like the chimpanzees used sticks to stir ants out from ant-hills to catch them.

Question 3.
What were the tools of the early man made of?
Answer:
The tools of the early man were made of bones, stones, dried twigs and sticks.

Question 4.
Why is the period of time called the ‘Stone Age’? ‘or’ What is meant by ‘Stone Age’?
Answer:
The period of time mainly stone tools found is called the Stone Age.

Question 5.
On what basis is the Stone Age divided?
Answer:
The Stone Age is divided on the basis of the shape and types of tools found.

Question 6.
Into how many periods is the Stone Age divided?
Answer:
The Stone Age is divided into three periods – Old Stone Age, Middle Stone Age and New Stone Age

Question 7.
What is the Old Stone Age also called?
Answer:
The Old Stone Age is also called the Palaeolithic Age.

Question 8.
What does Palaeolithic Age mean?
Answer:
Palaeo means ‘old’ and lithos means ‘stone’. Hence, Palaeolithic Age means the Old Stone Age’.

Question 9.
What is the Middle Stone Age called?
Answer:
The Middle Stone Age is called the Mesolithic Age.

Question 10.
What does Mesolithic mean?
Answer:
Mesolithic means ‘middle’. Hence, the Middle Stone Age.

Question 11.
What is the New Stone Age called?
Answer:
The New Stone Age is called the Neolithic Age.

Question 12.
What does Neolithic mean?
Answer:
Neo means ‘New’. Hence, Neolithic means the “New Stone Age

Question 13.
Which species of human evolution belong to Old Stone Age?
Answer:
The species Homo habilis and Homo erectus belong to Old Stone Age.

Question 14.
Who used the percussion technique of making tools?
Answer:
Homo habilis and Homo erectus used the percussion technique of making tools.

Question 15.
How were the frist tools of the Old Stone Age?
Answer:
The tools of the Old Stone Age were very crude

Question 16.
What were choppers?
Answer:
Choppers were crude tools, where only one side of which had a sharp edge.

Question 17.
For what purpose were the choppers used?
Answer:
Choppers were used to break nuts or bones.

Question 18.
Which tools made by Homo erectus were more proportionate and symmetrical than the tools made by Homo habilis?
Answer:
The hand-axe and cleaver were more proportionate and symmetrical” than the tools made by Homo habilis.

Question 19.
What could Homo erectus do before he actually shaped the tools?
Answer:
Homo erectus could mentally visualize his tools before he actually shaped them.

Question 20.
How did Homo erectus use antlers?
Answer:
He used things like antlers as hammers to obtain stone flakes.

Question 21.
How did Homo erectus make scrapers?
Answer:
He sharpened the edges of the flakes by scraping off smaller pieces to make scrapers with very sharp edges.

Question 22.
What benefits did Homo erectus acquire with his improved tools?
Answer:
With his improved tools, Homo erectus could have a greater variety of food as he could hunt a variety of big and small animals.

Question 23.
Who brought about a revolution in the technique of making tools?
Answer:
Homo sapiens brought about a revolution a in the technique of making tools.

Question 24.
What did the Homo sapiens build to live in?
Answer:
Homo sapiens built huts to live in.

Question 25.
What did the Homo sapiens start celebrating?
Answer:
Homo sapiens started celebrating social festivals.

Question 26.
What did the Homo sapiens create to enhance their festivals?
Answer:
The Homo sapiens created artistic objects and cave paintings to enhance their festivals.

Question 27.
How did they adorn themselves?
Answer:
They adorned themselves with ornaments and beads made from shells, bones and teeth of animals.

Question 28.
What fossils were found in Madhya Pradesh?
Answer:
Fossils of a human skull and the collar bone of an Old Stone Age woman was found on the bank of Narmada in Madhya Pradesh.

Question 29.
Which fossil was found at a village in Puducherry?
Answer:
A fossilized skull of a child from the Stone Age was found at a village in Puducherry.

Question 30.
Which are the well-known Old Stone Age sites in Maharashtra?
Answer:
Gangapur near Nasik and Chirki-Nevasa near Nevasa are among the few well-known Old Stone Age sites in Maharashtra.

Question 31.
Which animal did man of the Middle Stone Age domesticate?
Answer:
Man of the Middle Stone Age domesticated the dog.

Question 32.
Why did the life of humans begin to change?
Answer:
The life of humans began to change due to changes in the climate and environment.

Question 33.
What did the Homo sapiens begin to harvest?
Answer:
The Homo sapiens began to harvest food grains that grew in the wild.

Question 34.
How did the humans in the Middle Stone Age make their tools?
Answer:
He used to make implements like the knife and sickle by firmly fixing a row of blades as small as fingernails into a groove in a bone or a piece of wood.

Question 35.
What quality of tools were found in the Neolithic Age?
Answer:
In the Neolithic Age, the stone tools were polished to give a smooth, shiny finish.

Question 36.
What became the routine way of life for the humans in the New Stone Age?
Answer:
In the New Stone Age, agriculture and domestication of animals or animal husbandry had become a routine way of life.

Question 37.
Where are the sites of the New Stone Age culture in India?
Answer:
The sites of the New Stone Age culture in India are along the Ganga river and in South India.

Question 38.
What did Homo habilis use the flakes of stone for?
Answer:
Homo habilis used the flakes of stone for scraping meat from hide, for chopping meat and other foodstuffs, for sharpening wooden sticks, etc.

Give reasons for the following :

Question 1.
Only stone tools can be found today among those made by humans thousands of years ago.
Answer:
i. Rarely do we find tools made from bones.
ii. Since twigs and sticks decompose easily, we find only stone tools made by humans thousands of years ago.

Question 2.
The beginning of human culture goes back to the Old Stone Age.
Answer:

1. The Homo sapiens made significant progress in knowing the environment, making tools for obtaining food.
2. This enabled man to lead a stable life and live in one place.
3. They started celebrating festivals and adorning themselves.
4. Thus, we conclude that the beginning of human culture goes back to Old Stone Age.

Question 3.
Homo sapiens or the Middle Stone Age man now needed several different types of tools
that were light in weight and durable
Answer:
i. Besides hunting, the Homo sapiens began to undertake a variety of tasks like fishing, harvesting”, cutting of trees etc.
ii. Therefore, they now needed several different types of tools that were light in weight and durable.

Question 4.
Hunting was no more the major means of obtaining food.
Answer:
i. By the time of the New Stone Age, agriculture and animal husbandry became a routine way of life.
ii. Therefore, hunting was no more a major means of obtaining food.

Answer the following questions in brief :

Question 1.
List out the factors that determine the choice of tools.
Answer:
The four factors that determine the choice of tools is as follows:

1. Availability of resources
2. Minimal use of time and energy
3. Maximum efficiency
4. Skill of handling tools which is acquired through practice.

Question 2.
How did man learn to modify his tools?
Answer:

1. Man began to observe the environment & nature around him, continuously and minutely
2. With his inborn creativity, he learnt that he could sharpen rods, bones, sticks and stones into tools to carry out their task more efficiently.
3. He also learnt that he could shape these objects and use it to his advantage.

Question 3.
How can we conclude that the early man used tools made of twigs, bones and stones?
Answer:

1. The early man made tools using twigs, bones sticks and other materials available in nature.
2. Since twigs and sticks decompose easily, we do not find any tools made from them.
3. Only stone tools can be found today. Hence, we can conclude that the early man made tools not only out of stone but other materials also.

Question 4.
How is the Stone Age divided?
Answer:
The Stone Age is divided into 3 periods on the basis of the shape and the types of tools found.

1. Old Stone Age or Palaeolithic Age.
2. Middle Stone Age or Mesolithic Age
3. New Stone Age or Neolithic Age.

Question 5.
What lead the Homo sapiens to lead a more stable life?
Answer:

1. Homo sapiens made significant” progress in gaining knowledge of his environment and in the techniques of making tools and obtaining food.
2. This enabled him to stay in one place so he build huts to live in
3. They celebrated social festivals, made artistic objects and cave paintings.
4. They started using ornaments to adorn themselves. All this meant that Homo sapiens lead a very stable life.

Question 6.
How did the life of humans change during the Mesolithic Age?
Answer:

1. Due to the changes in the climate and the environment, the way of life in the Mesolithic Age began to change.
2. Besides hunting, man started to harvest food grains that grew in the wild and also domesticated animals.
3. Their diet also included various plant foods.
4. They settled in one place, made different types of tools that were light in weight and durable, for hunting, fishing, harvesting and cutting of trees.

Question 7.
Compare the tools of all the three periods of the Stone Age.
Answer:
A comparative study of tools of all three periods of Stone Age is as follows:

Old Stone Age

1. The tools made during the Palaeolithic Age were very crude.
2. Tools were made from any material that was commonly available from nature eg. bones, sticks, twigs and stones.
3. They used the percussion technique to make tools like choppers, hand – axe, cleavers and scrapers.

Middle Stone Age :

1. The tool making devise had been revolutionized during this period.
2. Man devised a technique of obtaining long and narrow blades of stone.
3. He made various implements which were sharper, symmetrical and light-weighted than the earlier age.
4. He made tools like knife, scraper, borer, chisel etc.
5. He also recognized the quality of stones and began to use ivory and rare stones of quartz for making tools.
6. He used ‘microliths’ to make arrows. He also made implements like knife and sickle.

New Stone Age :

1. The tools made during this age were sharper and more polished.
2. Man now made use of a tool-making technique where stone tools were polished to give a smooth and shiny finished look.
3. Since hunting became a secondary occupation, man in this age concentrated on making implements for agricultural use.

Question 8.
Homo erectus could have a greater variety of food.
Answer:

1. Homo erectus had improved tools.
2. He could now hunt a variety of big and small animals.
3. He could thus have a greater variety of food.

Question 9.
Middle Stone Age man began to settle in one place for a part of the year.
Answer:

1. Due to changes in the climate and the environment in the Middle Stone Age, the way of life of humans had begun to change.
2. The Middle Stone Age man had started to harvest food grains and domesticate animals.
3. Thus, he began to settle in one place for a part of the year.

Question 10.
What is meant by a ‘Chopper’?
Answer:

1. The first tools in the Old Stone Age were made with the percussion technique and were
   crude.
2. Only one side of these tools had a sharp edge.
3. These tools were called ‘Choppers’ and were used to break nuts or bones.

Question 10.
Where were the remains of Old Stone Age found in India?
Answer:

1. Remains of the Old Stone Age were found in India at various places from Kashmir to Tamil Nadu.
2. Fossils of a human skull and the collar bone of an Old Stone Age woman were found near Hoshangabad in Madhya Pradesh.
3. The fossilized skull of a child was found at a village near Puducherry.

Glossary :

1. domesticated : tame and keep as pet
2. durable : not perishable
3. Implements : piece le of equipments
4. Antlers : branched horns on the head of an adult dear
5. crude : in a natural or raw
6. proportionate : corresponding in size or amount to something else
7. symmetrical : exactly similar parts
8. harvesting : gather crops
9. acquired : buy or obtain
10. minutely : with great attention to detail
11. ivory : hard, creamy white elephant tusks
12. quartz : a hard mineral, crystal
13. significant : sufficiently great or important
14. microliths : a small shaped flint
15. grinder : machine used for grinding o something
16. revolution: a forcible overthrow of a government
17. enhance: intensify or o increase

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 5 Evolution of Mankind Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 5 Evolution of Mankind

5th Std EVS 2 Digest Chapter 5 Evolution of Mankind Textbook Questions and Answers

1. Fill in the blank.

Question a.
Homo is a Latin word which means ____________.
Answer:
Homo is a Latin word which means man.

Question b.
The Neanderthals primarily lived in ____________.
Answer:
The Neanderthals primarily lived in caves.

2. Answer question in one sentence.

Question a.
Who is said to have first made tools like the hand-axe?
Answer:
Homo erectus is said to have first made tools like a hand-axe.

Question b.
What is heredity?
Answer:
Heredity is similarity in appearance and health characteristics of human beings to their ancestors.

3. Give reasons for the following.

Question a.
The Neanderthals became extinct.
Answer:

1. Homo sapiens were the neighbours of the Neanderthals in Europe. Conflicts with the Homo sapiens took place; wherein the Neanderthals suffered.
2. The Neanderthals failed to adapt to environmental changes. As a result, the Neanderthals became extinct.

Question b.
Humans could produce subtle and varied types of sounds.
Answer:

1. Homo sapiens had developed to a stage wherein they had fully developed larynx.
2. Their jaws and muscles inside the mouth were fully developed.
3. Their tongue was flexible. Therefore, human beings (Homo sapiens) could produce subtle and varied types of sounds.

4. Read the clues given below and find the words hidden in the box.

Question 1.
Read the clues given below and find the words hidden in the box.

• Humans who stood upright.
• A sound that Neanderthals could make.
• Humans who used their hands.
• Homo sapiens sapiens began to grow this in fields.
• Pieces of stone used to make tools.
• It kept Homo erectus warm although they could not make it.
• A country in which remains of Homo habilis were found.
• A way of preparing food that Neanderthals used.
• A tool made by Homo erectus.
• Homo sapiens could do this to make pictures.
• Humans could use their hands because they learnt to stand on two of these.
• The country in which remains of Neanderthals were first found.
• These were buried with them when Neanderthals died.

Activity :

Question 1.
Prepare a chart to show the progress of Man at the various stages from Homo habilis to Homo sapiens sapiens.

Environmental Studies Part 2 Standard 5th Solutions Chapter 5 Evolution of Mankind Additional Important Questions and Answers

Fill in the blanks :

1. The species of humans who could use their hands effectively is known as the ……….. human.
2. The scientist Louis Leakey who discovered this species named it …………………
3. Homo habilis could ………………… on two feet and walk.
4. The spine of Homo habilis was slightly ……. and not quite erect.
5. The stone tools made by Homo habilis were not useful for hunting ………. animals.
6. Homo habilis was a ………….
7. Homo erectus marks an important stage in human ………….
8. Compared to Homo habilis, Homo erectus has a more ……………………. brain.
9. Homo erectus species lived in ……….
10. During the time of ……………….., the earth was covered with ice sheets.
11. Homo erectus made tools like the
12. The remains of Homo erectus have been found along with his ……………………. in the continents of Africa, Asia and Europe.
13. The …………………. man was physically big and strong
14. His……………….. was more developed than that of Homo erectus.
15. They made tools out of big ……………….
16. The Neanderthals hunted ………. animals.
17. They used ………………… clothing.
18. They were mainly …………….. eaters.
19. They ate meat…………… on fire.
20. They knew the art of making………
21. Some scientists believe that the Neanderthals communicated with each other by producing ……… and other primary sounds.
22. Neanderthals had established some ………… of burying the dead.
23. Some groups of Neanderthals left …………………. and migrated up to the continents of Europe and Asia.
24. They had to …………. new ways of living and finding food.
25. ………………… is the name used for humans that were more advanced than the Neanderthals.
26. Homo sapiens means ……………. Man.
27. The ………….. became extinct about 30,000 years ago
28. In Europe, Homo sapiens is also known as ……………. Man.
29. Homo sapiens used to make stone ……………. and fix them in grooves’ and notches made in wood or bone handles.
30. Homo sapiens could produce a variety of ……………. and modulate his ……… ….. the way he liked.
31. Homo sapiens had a well-developed ……………. system.
32. Homo sapiens could draw…………….. on the basis of actual observation as well as imagination.
33. The capacity of the human brain and his grasping power went on continuously.
34. ………………. is a science that studies heredity.
35. Genetics research has shown that we have inherited some traits of the ………….. man.
36. Homo sapiens sapiens developed the technique of cultivating ………….. and keeping ………………..
37. He began to live a more …………. life.
38. The changed lifestyle and diet affected the …….. of humans.
39. The name ……………………. reflects his intellectual and cultural rather than his physical prowess”.
40. In Europe, …………… is also known as Cro-Magnon Man’.
41. The stone tools made by ………… were not useful for hunting big animals.

Answer:

1. skilled
2. Homo
3. stand
4. bent
5. big
6. forager
7. evolution
8. developed
9. groups
10. Homo erectus
11. hand-axe
12. tools
13. Neanderthal
14. brain
15. pebbles
16. big
17. leather
18. meat
19. roasted
20. fire
21. grunts
22. rituals
23. Africa
24. adopt
25. Homo sapiens
26. Intellectual
27. Neanderthal
28. CroMagnon
29. blades
30. sounds, voice
31. language
32. pictures
33. developing
34. Genetics
35. Neanderthal
36. land, animals
37. settled
38. appearance
39. Homo sapiens sapiens
40. Homo sapiens
41. Homo habilis

Match the columns :

Question 1.

Column ‘A’	Column ‘B’
1. Homo habilis	a. The man who stands erect.
2. Homo erectus	b. Intellectual Man.
3. Neanderthal Man	c. A man who uses his hands skillfully.
4. Homo sapiens	d. Remains found in Europe, Asia, Africa.
5. Cro-Magnon Man	e. Knew the art of making fire.
6. Louis Leakey	f. Science that studies heredity.
7. Neanderthal Man	g. Made tools like the hand-axe.
8. Homo erectus	h. Had a well developed language system
9. Homo sapiens	i. Remains found in Germany.
10. Genetics	j. Discovered the species ‘Homo habilis’

Answer:

Column ‘A’	Column ‘B’
1. Homo habilis	c. A man who uses his hands skillfully.
2. Homo erectus	a. The man who stands erect.
3. Neanderthal Man	e. Knew the art of making fire.
4. Homo sapiens	b. Intellectual Man.
5. Cro-Magnon Man	d. Remains found in Europe, Asia, Africa.
6. Louis Leakey	j. Discovered the species ‘Homo habilis’
7. Neanderthal Man	i. Remains found in Germany.
8. Homo erectus	g. Made tools like the hand-axe.
9. Homo sapiens	h. Had a well developed language system
10. Genetics	f. Science that studies heredity.

Answer if the following statements are True/False. If false, then state the correct answer:

Question 1.

1. The scientist Louis Leakey named the first species of humans as Homo erectus.
2. In Latin “Homo’ means ‘man’.
3. Homo erectus means The man who can use his hands skilfully
4. The stone tools made by Homo habilis were not useful for hunting big animals.
5. Homo habilis was not a forager”
6. Homo erectus species lived in groups.
7. Homo erectus knew the technique of making fire.
8. Homo erectus made tools like the hand-axe.
9. The Neanderthal Man was more developed than that of Homo erectus.
10. The Neanderthal Man hunted small animals.
11. The Neanderthal Man knew the art of making fire.
12. The Neanderthals established some rituals of burying the dead
13. Some groups of Neanderthals left Africa and migrated to India
14. Homo sapiens means Intellectual Man.
15. The Neanderthals became extinct about 30,000 years ago
16. Homo sapiens is also known as the ‘Cro Magnon Man’ in Europe.
17. The Homo sapiens could only grunt and make some sounds.
18. Genetics is a science that studies heredity.
19. The changed lifestyle and diet affected the appearance of humans.
20. Homo sapiens sapiens reflects his intellectual and culture rather than his physical prowess.

Answer:

1. False. The scientist Louis Leakey named the first species of humans as Homo habilis.
2. True.
3. False. Homo habilis means “The man who can use his hands skilfully’.
4. True.
5. False. Homo habilis uns a forager.
6. True
7. False. Homo erectus knew the use of fire but had not mastered the technique of making fire.
8. True
9. True.
10. False. The Neanderthal Man hunted big animals.
11. True.
12. True.
13. False. Some groups of Neanderthals left Africa and migrated to the continents of Europe and Asia.
14. True.
15. True.
16. True.
17. False. The Homo sapiens has a well-developed language system.
18. True.
19. True
20. True.

Answer the following questions in one sentence each:

Question 1.
What was the species of humans who could use their hands effectively known as?
Answer:
The species of humans who could use their hands effectively is known as ‘The skilled human

Question 2.
Where was the first evidence of this species found?
Answer:
The first evidence of this species was found in the border region between Tanzania and Kenya in the continent of Africa.

Question 3.
What was this species named and by which scientist?
Answer:
The scientist Louis Leakey who discovered this species, named it “Homo habilis’.

Question 4.
What does Homo habilis mean?
Answer:
Homo habilis means ‘the one who uses his hands skillfully.

Question 5.
Why was he called Homo habilis?
Answer:
He was called Homo habilis because besides their fossilized remains, some tools made by them were also found.

Question 6.
Give two uses of the stone tools made by Homo habilis.
Answer:
The stone tools made by Homo habilis had limited uses such as scraping” meat from the skin of dead animals or breaking bones to get the marrows

Question 7.
How did Homo habilis acquire his food?
Answer:
Homo habilis was a forager. It is possible that he hunted small animals, gathered eggs, wild fruits and roots to eat.

Question 8.
What does Homo erectus mean?
Answer:
Homo erectus means ‘the one who stands erect’.

Question 9.
How did Homo erectus survive the extreme climatic conditions during the ice-age?
Answer:
Homo erectus could survive the extreme climatic conditions during the ice-age because he knew the use of fire but had not mastered the technique of making fire.

Question 10.
Where have the remains of Homo erectus been found?
Answer:
The remains of Homo erectus have been found in the continents of Africa, Asia and Europe.

Question 11.
Where were the remains of the Neanderthal Man found?
Answer:
The remains of the Neanderthal Man were first found at Neanderthal in Germany.

Question 12.
How did the Neanderthal Man eat roasted meat?
Answer:
The Neanderthal knew the art of making fire and hence ate roasted meat.

Question 13.
How did the Neanderthal Man communicate with each other?
Answer:
The Neanderthals communicated with each other by producing grunts and other primary sounds.

Question 14.
Where did the Neanderthal Man migrate?
Answer:
Some groups of Neanderthal Man left Africa and migrated up to the continents of Europe and Asia.

Question 15.
What was the challenge to the Neanderthal Man in Europe and Asia?
Answer:
The Neanderthals had to adopt to the new way of living and finding food as they had to face a different environment.

Question 16.
Which Species of humans were more advanced than the Neanderthal Man?
Answer:
The Homo sapiens was more advanced than the Neanderthal Man.

Question 17.
What does Homo sapiens mean?
Answer:
Homo sapiens means Intelligent or Intellectual man.

Question 18.
How many years ago did the Neanderthal Man become extinct?
Answer:
The Neanderthal Man became extinct about 30,000 years ago

Question 19.
What are Homo sapiens known as in England?
Answer:
Cro-Magnon man.

Question 20.
Where have their remains been found?
Answer:
Their remains have been found in Europe, Asia and Africa.

Question 21.
Describe the tools used by the Cro-Magnon man.
Answer:
The Cro-Magnon man used tools made of stone blades and fixed them in grooves and notches made of wood or bone handles.

Question 22.
Why was the human species later called as Homo Sapiens Sapiens?
Answer:
The human species was later known as Homo sapiens sapiens as their capacity to think developed even further than that of Homo sapiens.

Question 23.
What is Genetics?
Answer:
Genetics is a science that studies ‘heredity’.

Give reasons for the following:

Question 1.
Homo habilis was a forager.
Answer:
i. Homo habilis was a forager.
ii. This is because he ate the leftovers of animals that had been hunted by others.

Question 2.
Homo erectus could survive during the ice age.
Answer:
i. During the time of Homo erectus, the earth was covered with icesheets and the climate was extremely cold.
ii. As the Homo erectus had learnt the use of fire, he could survive the extreme climate.

Question 3.
The human species Homo Neanderthalensis was known as the Neanderthal Man.
Answer:
The human species Homo Neanderthalensis was commonly known as the Neanderthal Man because his remains were first found in Neanderthal in Germany.

Question 4.
The Neanderthals ate meat roasted on fire.
Answer:
i. The Neanderthals knew the art of making fire.
ii. As they were meat eaters, they ate meat roasted on fire.

Question 5.
Homo sapiens had a well-developed language system.
Answer:
i. The Homo sapiens could produce a variety of sounds and modulate his voice.
ii. Using his imagination, he could name the things around him and soon could put his thoughts and feelings into words thus developing a language system.

Question 6.
The Homo sapiens was named as an Intelligent Man.
Answer:

1. During the course of their evolution, Homo sapiens had developed a language system.
2. He could also draw pictures on the basis of observation and imagination.
3. Hence, he was named as an Intelligent Man.

Question 7.
It is said that the Neanderthal Man and Homo sapiens are both ancestors of the modern humans.
Answer:
i. Genetic research has shown that the modern man has inherited some traits of the Neanderthal Man.
ii. Thus, it can be said that the Neanderthal Man and Homo sapiens are both ancestors of the modern humans.

Answer the following in brief :

Question 1.
Why was the first human species named Homo habilis?
Answer:

1. The scientist Louis Leakey who discovered this first human species named it ‘Homo habilis’.
2. He found some tools made by them beside their fossilized remains.
3. In Latin ‘Homo habilis’ means the man who can use his hands skillfully.
4. Thus, the first human species got their name.

Question 2.
Describe Homo habilis.
Answer:

1. Homo habilis could stand on two feet and walk.
2. His spine was slightly bent and was not quite erect.
3. His brain was bigger than the apes although – he looked somewhat similar.

Question 3.
Give the two uses of the stone tools made by Homo habilis.
Answer:

1. The stone tools made by Homo habilis were not useful for hunting big animals.
2. They had limited uses such as scraping meat from the skin of dead animals.
3. They were also used for breaking bones to get the marrow.

Question 4.
Homo erectus knew the use of fire – Explain.
Answer:

1. During the time of Homo erectus, the Earth was covered with icesheets, hence the climate was extremely cold.
2. Homo erectus could survive that extreme climate because he had learnt to use fire.
3. However, he had not yet mastered the technique of making fire.

Question 5.
Compare the Neanderthal Man to his predecessors.
Answer:

1. The Neanderthal Man was physically big and strong.
2. His brain was more developed.
3. He made tools out of big pebbles. The tools were fixed on a bone or a wooden shaft to make weapons like the spear, axe etc.
4. He hunted big animals, ate their meat and used their leather as clothing.
5. He knew the art of making fire.

Question 6.
How did the Neanderthal Man make fire?
Answer:
i. The Neanderthals knew the technique of making fire.
ii. They rubbed sticks of hard wood on each other or by striking one flintstone on another to obtain sparks.

Question 7.
How did the Neanderthals treat their dead?
Answer:

1. When a member of the group died, the Neanderthals buried tools, horns etc. along with the dead body.
2. They applied red ochre to the dead body before burying it.
3. The Neanderthals thus established some rituals of burying the dead.

Question 8.
Describe the tools made by Homo sapiens.
Answer:
i. Homo sapiens made different kinds of tools and implements to suit the tasks they needed to do.
ii. They made sharp blades of stone and fixed them in grooves and notches made in wood or bone handles.

Question 9.
Why was the Homo sapien called “The Thinking Man’?
Answer:

1. The tools made by Homo sapien were sharper and more precise than the other species.
2. He had a well-developed language system.
3. He could draw pictures on the basis of observation as well as imagination.
4. Hence, he was called as The Thinking Man’.

Question 10.
Describe the development of the Homo sapiens.
Answer:

1. Homo sapiens sapiens developed the technique of cultivating land and keeping animals.
2. With his well-developed capacity to think, the speed at which he improved his technology went on increasing
3. He lived a more settled life.
4. He began to grow food grains in the fields.

Question 11.
The name Homo sapiens sapiens reflects his intellectual and cultural rather than his physical prowess – Explain.
Answer:

1. Modern humans are not satisfied with only meeting their basic need for food.
2. To enrich their life, human beings acquired a culture and continued to develop it.
3. The technological and cultural progress achieved by modern humans has been extremely rapid.
4. Hence, we can rightly say that the life of the Homo sapiens sapiens reflects his intellectual and cultural progress rather than his physical prowess.

Glossary :

1. effectively : in such a manner as to achieve a desired result
2. skillfully : with expertise
3. grunts : low short sound
4. appearance : the way something or someone looks
5. established : existed and recognised
6. migrated : move from one region to another
7. grooves : a long narrow cut in a hard material
8. notches : an incision on a surface
9. modulate : change the o tone pitch of voice
10. prowess : skill in a particular field
11. pebbles : small stones
12. adopt : choose to take up on follow
13. forager : someone who reaches for food
14. scraping : remaining from a surface with forceful strokes
15. marrow : a tissue o in the body, next to bones
16. roasted : cooked
17. ancestors: a person from whom one is descended
18. subtle: very delicate and precise
19. larynx : a hollow passage holding the vocal cords in the human body
20. traits : a distinguishing quality
21. predecessors : someone who came before
22. ochre : an earthy clay-like thing

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 18 The Environment and Us Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 1 Chapter 18 The Environment and Us

5th Std EVS 1 Digest Chapter 18 The Environment and Us Textbook Questions and Answers

1. What’s the solution?

Question 1.
Rivers and lakes are filled with water hyacinth.
Answer:
Water hyacinth are formed in rivers and lakes due to pollution. That is mainly due to mixture of detergents in the water. To control it the water hyacinth should be removed and waste water from households or washing clothes in water should be banned.

2. Use your brain power!

Question 1.
What would happen if no kites (birds) are left in a particular region? Which living things would increase in number? Which would decrease?
Answer:
If no kites are left in a particular region the number of birds, amphibian, small mammals and earthworms would increase.

3. Answer the following questions.

Question (a)
What is meant by migration?
Answer:
Movement from one place to another for a short period of time or permanently is called migration.

Question (b)
Describe the life cycle of birds.
Answer:
Birds lay eggs. The eggs are hatched and after a few days, the small birds come out. They grow up in the nest. After three-four weeks they become an adult bird and start laying eggs.

Question (c)
Give two causes of air pollution.
Answer:
The two causes of air pollution are as follows:
1. Fuels are burnt in vehicles, give out certain poisonous gas and smoke.
2. Industries let out some poisonous gases into the air.

Question (d)
For what purpose do we use land obtained by clearing forests?
Answer:
We use land for agriculture, housing, industry and for building roads and railways by clearing forest.

4. Give reasons:

Question (a)
It is important to conserve the living components of the environment.
Answer:
It is important to conserve the living components of the environment because:

1. Due to human intervention in nature the non living components are getting polluted.
2. So the living things are threatened.
3. Several living things have already become extinct.
4. If one factor of the environment is damaged, it disturbs environmental balance.
5. The process of extinction is increasingly fast.
6. This will be a threat to the whole living world.

Question (b)
The numbers of wild animals are falling day by day.
Answer:

1. Forests have been cut down to make place for various reasons of man’s need.
2. Forest provide shelter and food to the wild animals.
3. If the plants on the earth are destroyed the number of animals also fall day by day.
4. Because of hunting, the population of wild animals is falling.

5. True or False:

Question (a)
Dead plants and animals are a biotic components.
Answer:
False

Question (b)
It is necessary to conserve biodiversity.
Answer:
True

6. Classify the following as natural or man-made:

Question 1.
Classify the following as natural or man-made:
Soil, horse, stone, water hyacinth, book, sunlight, dolphin, pen, chair, water, cottonwool, table, trees, brick.
Answer:
Natural – horse, water hyacinth, sunlight, dolphin, water, trees, cottonwool.
Manmade – soil, stone, book, pen, chair, table, brick.

Environmental Studies Part 1 Standard 5th Solutions Chapter 18 The Environment and Us Additional Important Questions and Answers

Fill in the blanks with the correct answers from the options given below:

Question 1.
The population of the world is now close to hundred crore.
(a) four
(b) five
(c) six
Answer:
(c) six

Question 2.
Tremendous quantities of ………………… enter the air due to burning of fuels.
(a) oxygen
(b) nitrogen
(c) carban dioxide
Answer:
(c) carban dioxide

Question 3.
The ………………….. sanctuary is known for bisons.
(a) Radhanagari
(b) Tadoba
(c) Kaziranga
Answer:
(a) Radhanagari

Question 4.
…………………… state has declared the Nannaj area a sanctuary for the Great Indian Bustard.
(a) Maharashtra
(b) Madhya Pradesh
(c) Meghalaya
Answer:
(a) Maharashtra

Question 5.
In Madhya Pradesh, Devrais are known as ………….. .
(a) Devran
(b) Sharanvan
(c) Sharanrais
Answer:
(b) Sharanvan

Question 6.
Masrhy or low-lying areas are filled to …………….. the land.
(a) rebuild
(b) reclaim
(c) restore
Answer:
(b) reclaim

Question 7.
There are many types of ……………….. in forests.
(a) plants
(b) rivers
(c) dams
Answer:
(a) plants

Question 8.
Birds build their nests in ………………. .
(a) shrubs
(b) bushes
(c) trees
Answer:
(c) trees

Question 9.
Water sources get ……………… if waste water is let into them without processing.
(a) polluted
(b) clogged
(c) depleted
Answer:
(a) polluted

Question 10.
……………… water is also given out from factories into their surroundings.
(a) Waste
(b) Running
(c) Stagnant
Answer:
(a) Waste

Question 11.
If water from such polluted sources keeps soaking into the soil, it becomes ……………….. .
(a) fertile
(b) infertile
(c) marshy
Answer:
(b) infertile

Question 12.
Chemical fertilizers and pesticides are used on a large scale for ………………. .
(a) Horticulture
(b) Vermiculture
(c) Agriculture
Answer:
(c) Agriculture

Question 13.
…………………. is used in all homes.
(a) Fuel
(b) Coal
(c) Kerosene
Answer:
(a) Fuel

Question 14.
There are big industries and factories in which ……………… is used in great quantities.
(a) water
(b) smoke
(c) fuel
Answer:
(c) fuel

Question 15.
When the proportion of carbon dioxide in the air rises, it leads to rise in ………………….. .
(a) rain
(b) temperature
(c) pollution
Answer:
(b) temperature

Question 16.
When fuels are burnt in vehicles, they give out certain ……………… gases as well as smoke.
(a) poisonous
(b) polluted
(c) natural
Answer:
(a) poisonous

Question 17.
Industries also let out some ……………….. gases into the air.
(a) poisonous
(b) polluted
(c) natural
Answer:
(a) poisonous

Question 18.
Due to human ……………………. in nature, large scale changes are taking place in air, water and land.
(a) interval
(b) intervention
(c) invention
Answer:
(b) intervention

Question 19.
From time to time, some of the living things on the earth become ………………. .
(a) strong
(b) weak
(c) extinct
Answer:
(c) extinct

Question 20.
Food, water and clothes are the …………….. of all people.
(a) basics
(b) needs
(c) pollution
Answer:
(b) needs

Question 21.
We need to take steps to prevent the …………………. of the environment.
(a) degradation
(b) pollution
(c) conservation
Answer:
(a) degradation

Question 22.
Let us all ensure that no action on our part will cause ……………….. or cause harm to living things.
(a) conservation
(b) intervention
(c) pollution
Answer:
(c) pollution

Question 23.
Let us make all possible efforts for the …………………. of the living world.
(a) conservation
(b) degradation
(c) confrontation
Answer:
(a) conservation

Question 24.
Several projects are being implemented at the international level to …………………. the balance of nature.
(a) mountain
(b) maintain
(c) destroy
Answer:
(b) maintain

Question 25.
It is important to raise the awareness of people all over the world about the …………………. to environmental balance.
(a) threat
(b) reservation
(c) treat
Answer:
(a) threat

Question 26.
In ‘biodiversity park’, biodiversity is both preserved and ……………….. .
(a) memorized
(b) studied
(c) destroyed
Answer:
(b) studied

Question 27.
People visiting ‘biodiversity park’, enjoy being close to ……………….. .
(a) parks
(b) grass
(c) nature
Answer:
(c) nature

Question 28.
Some areas which are important for the protection and conservation of wild life are …………… for them.
(a) revered
(b) reserved
(c) protected
Answer:
(b) reserved

Question 29.
If the plants on the earth are destroyed the numbers of …………………….. also fall.
(a) humans
(b) trees
(c) animals
Answer:
(c) animals

Question 30.
If deforestation is stopped, and instead tree plantation is stepped up, animals that depend on plants will get protection and ……………………. .
(a) thrive
(b) threat
(c) deplete
Answer:
(a) thrive

Question 31.
………………… lake has formed due to a dam built on the Chand river in Satara district.
(a) Victoria
(b) Mayani
(c) Tulsi
Answer:
(b) Mayani

Question 32.
………………….. from the Siberia region in northern Asia migrate to this lake.
(a) Deer
(b) Bison
(c) Flamingos
Answer:
(c) Flamingos

Question 33.
Mayani lake has been declared a ………………… for birds.
(a) sanctuary
(b) conservatory
(c) threat
Answer:
(a) sanctuary

Question 34.
People believe that a Devrai is really a jungle reserved for ………………. .
(a) us
(b) god
(c) people
Answer:
(b) god

Question 35.
Devrais give ………………. not only to the plants but also to the animals that live there.
(a) shelter
(b) food
(c) clothing
Answer:
(a) shelter

Question 2.
State whether the following statements are True or False:

1. Pollution of water is a threat to aquatic plants and animals.
2. Nature provides enough for every man’s greed, but not for every man’s need.
3. The Maldhok is also called the Great Indian Bustard.
4. Marshy or low lying areas are filled to reclaim the land.
5. Man is also a part of nature.

Answer:

1. True
2. False
3. True
4. True
5. False

Name the following:

Question 1.
Two National Parks.
Answer:
Kaziranga National Park and Tadoba National Park.

Question 2.
Lake built on the Chand river in Satara.
Answer:
Mayani.

Question 3.
Birds which migrate to Asia from Siberia.
Answer:
Flamingo.

Question 4.
The biggest Maldhok sanctuary in Asia.
Answer:
Nannaj in Solapur district

Question 5.
State known for Devrais.
Answer:
Maharashtra

Question 6.
Village famous for peacock population
Answer:
Morachi Chincholi

Answer in one sentence:

Question 1.
What is a biodiversity park?
Answer:
An area which is reserved for the purpose of protecting and conserving the biodiversity of a region is called a biodiversity park.

Question 2.
What are national parks?
Answer:
Some areas reserved for the protection and conservation of wildlife are called national parks.

Question 3.
What is a sanctuary?
Answer:
Certain forest areas are reserved for the protection and conservation of a particular animal or plant. It is called a sanctuary.

Question 4.
What are Devrai?
Answer:
In Indian culture, people believe that a jungle is reserved for god which is known as Devrai.

Question 5.
Which trees are commonly looked after for birds in Morachi Chincholi?
Answer:
Tamarind trees are commonly looked after for birds in Morachi Chincholi.

Question 6.
What is the population of the world?
Answer:
The population of the world is now close to six hundred crore.

Question 7.
Why is man using up more and more land and water resources?
Answer:
Man is developing new technology to meet the needs of all the people, so man is using more and more land and water resources.

Question 8.
What happens if forests are reduced?
Answer:
If forests are reduced, biodiversity is also depleted.

Question 9.
How do water sources get polluted?
Answer:
Water sources get polluted if waste water is let into them without processing.

Question 10.
What happen when water from polluted sources keep soaking into the soil?
Answer:
If water from polluted sources keep soaking into the soil, the soil become infertile.

Question 11.
What happens when the proportion of carbon dioxide in the air rises?
Answer:
When the proportion of carbon dioxide in the air rises, it leads to rise in temperature.

Question 12.
How is the environmental balance disturbed?
Answer:
If one factor of the environment is damaged, its relationships with other factors also get affected. Thus the environmental balance is disturbed.

Question 13.
What steps can be taken to prevent the degradation of the environment?
Answer:
We must use our means frugally and recycle used articles, if every person practices this sincerely then we can prevent degradation of the environment.

Question 14.
What happens when deforestation is stopped and tree plantation is stepped up?
Answer:
If deforestation is stopped and instead tree plantation is stepped up, animals that depend on plants will get protection and thrive.

Question 15.
How is the Mayani lake helpful to migratory birds?
Answer:
Mayani lake homes flamingos from Siberia who migrate to this lake. Here they build nests, lay eggs and when the baby bird grows big enough they return with them to Siberia.

Question 16.
What steps has the Maharashtra State government taken to protect the Great Indian Bustard?
Answer:
Maharashtra State has declared the Nannaj area a sanctuary for Great Indian Bustard thus helping them from extinction.

Question 17.
The environment is being degraded rapidly.
Answer:
(a) Man fulfil his needs by using materials from environment.
(b) All the people in the world have similar needs and desires.
(c) So, the environment is being degraded rapidly.

Question 18.
Flamingos have stopped coming to Mayani Lake.
Answer:
1. Flamingos used to migrate from Silbeia to Mayani lake to build their nests and lay eggs.
2. In the recent past, the water level in the dam has fallen.
3. Therefore, the flamingos have stopped coming to Mayani lake.

Question 19.
The Indian Bustard are the farmers’ friend.
Answer:

1. The Indian Bustard live in open grasslands.
2. They feed on insects thus giving protection to crops in fields.
3. Therefore, they are the farmers’ friend.

Answer briefly:

Question 1.
Give two causes of water pollution.
Answer:
The two causes of water pollution are as follows:
1. Waste water given out from factories are let into water bodies without processing.
2. Chemical fertilizers and pesticides are used in agriculture which seep into the soil and finally flow into rivers with rainwater.

Can you tell?

(A) With the help of the questions below, explain what would happen if forests are cleared on a large scale.

Question 1.
Will water and food sources for living things grow or dwindle? Why?
Answer:
If forests are cleared the amount of rain will become less and the amount of food required will dwindle.

Question 2.
Will the living things look for shelters elsewhere or stay on? Why?
Answer:
The living things will look for shelter elsewhere if forest is cleared because forest is their home.

Question 3.
Will the space occupied by the plants and animals increase or decrease? Why?
Answer:
The space occupied by the plants and animals will decrease because forest that is cleared will be used for other purpose.

Question 4.
Will the number of living things increase or decrease? Why?
Answer:
The number of living things will decrease because forest provides food, shelter and water.

(B)

Question 1.
What could be the reasons of air pollution?
Answer:
The reasons of air pollution are increasing use of vehicles and growth of industries.

Question 2.
What are the different purposes for which fuels such as petrol, diesel, kerosene, natural gas, coal and wood are used?
Answer:
Petrol and diesel are used in vehicles. Kerosene is used in stoves. Natural gas is used for cooking. Coal and wood are used for burning.

Question (C)
You see a food chain in the picture above. One of the links is missing. What effect will it have on the grasshopper? On the bird? What picture should there be in the blank space? If this living thing really died out, what would be the threat to the entire living worlds? Discuss your answers in the class.

Answer:
Grass is missing. If grass is not there then the number of grasshoppers will become less or even become extinct. Birds will not get enough food and become less or may even extinct.

Glossary:

1. biodiversity -variety of plant and animal life in a particular habitat
2. deforestation – clearing/cutting of forests or trees.
3. depleted – reduced
4. frugally – sparingly
5. degradation – breaking down.
6. components – parts
7. intervention – interference
8. extinction – non-existence.
9. dwindle diminish gradually.

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 4 Evolution Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 4 Evolution

5th Std EVS 2 Digest Chapter 4 Evolution Textbook Questions and Answers

1. Fill in the blank.

Question a.
The first systematic explanation of the concept of evolution was given by ………………… .
Charles Darwin
Willard Libby
Louis Leakey
Answer:
The first systematic explanation of the concept of evolution was given by Charles Darwin.

Question b.
……………… are the most evolved animals among vertebrates
Aquatic animals
Amphibians
Mammals
Answer:
Mammals are the most evolved animals among vertebrates

2. Answer the question in one sentence.

What do we call animals which live in water and also on land?
Answer:
Amphibians live in water and also on land.

Where did the first humans appear?
Answer:
The first human appeared on the African continent.

3. Give reasons for the following:

Question a.
The species of dinosaurs, which were enormous in size, suddenly became extinct.
Answer:
The species of dinosaurs, which were enormous in size, suddenly became extinct, because –

1. According to Darwin, the species that cannot adapt to environmental changes become extinct in the process of evolution.
2. Some sudden natural disaster or environmental change is believed to be responsible for the extinction of enormous dinosaurs.

Question b.
In the course of time, a new species with characteristics different from the original species is created.
Answer:
In the process of survival by adapting to environmental changes, certain internal physical changes occur in some species of animals.
Over a period of time, these changes become inherited characteristics seen in all subsequent generations. Thus, in the course of time, a new species with characteristics different from the original species is created.

4. Fill in the blanks in the concept chart given below.

Question 1.
Fill in the blanks in the concept chart given below.

Answer:

Activity :

Question 1.
Make a model of a dinosaur.

Project :

Queston 1.
Collect pictures of invertebrates and vertebrates. Stick them in a notebook and write down their characteristics.

Environmental Studies Part 2 Standard 5th Solutions Chapter 4 Evolution Additional Important Questions and Answers

Fill in the blanks :

1. The word ……… generally means a gradual and continuous change.
2. In the process of survival by adapting to environmental changes, certain internal ……………. changes occur in some animals of a species.
3. Sometimes during evolution, the original species becomes ………..
4. During evolution, sometimes more than one species evolve from the ………….. species.
5. The first systematic explanation of the concept of evolution was given by …………
6. Species which are capable of adapting to environmental changes are able to …………
7. Species that cannot adapt to environmental changes become ………….
8. …………………… means a ‘terrible lizard’.
9. Some sudden natural………………….. is believed to be responsible for the extinction of Dinosaurs.
10. Fossils of dinosaurs with ………………… have been discovered
11. It is supposed that some species of two legged and winged dinosaurs evolved into …………..
12. The ……………………… organisms evolved gradually and various classes of plants and animals came into being.
13. Animals without a backbone are called ……………
14. Animals which have a backbone are called ……….
15. …………………….. are animals which live in water and also on land.
16. Animals which crawl are called ………………..
17. A mammals baby is …………………. on the mother’s milk for some time after birth.
18. The platypus and anteater are also considered as ……………
19. ………………… are somewhat like humans in appearance.
20. Apes mostly lived on ………….
21. Some ape species that evolved give rise to ………….. species.
22. The first human species is called the …………… man.
23. Primitive means ………………..

Answer:

1. evolution
2. physical
3. extinct
4. original
5. Charles Darwin
6. survive
7. extinct
8. Dinosaurs
9. disaster
10. wings
11. birds
12. multicellular
13. invertebrates
14. Vertebrates
15. Amphibians
16. Reptiles
17. fed
18. mammals
19. Apes
20. trees
21. human
22. primitive
23. the first

Match the columns :

Question 1.

Column ‘A’	Column ‘B’
1. Charles Darwin	a. a gradual and continuous change
2. Evolution	b. means ‘terrible lizard’
3. Dinosaur	c. gradually evolved into plants and animals
4. Multicellular	d. explained the concept of evolution
5. Invertebrates	e. frogs
6. Aquatic	f. snake
7. Amphibians	g. cow
8. Reptiles	h. snails
9. Mammals	i. fish

Answer:

Column ‘A’	Column ‘B’
1. Charles Darwin	d. explained the concept of evolution
2. Evolution	a. a gradual and continuous change
3. Dinosaur	b. means ‘terrible lizard’
4. Multicellular	c. gradually evolved into plants and animals
5. Invertebrates	e. frogs
6. Aquatic	i. fish
7. Amphibians	e. frogs
8. Reptiles	f. snake
9. Mammals	g. cow

Answer each question in one sentence:

Question 1.
What does evolution mean?
Answer:
Evolution means a gradual and continuous change

Question 2.
What changes occur in some species, during the process of survival?
Answer:
In the process of survival, by adapting to environmental changes, certain internal physical changes occur in some animals of a species.

Question 3.
What happens to the internal changes over a period of time?
Answer:
Over a period of time, these internal changes become inherited characteristics seen in all generations.

Question 4.
When does an original species become extinct?
Answer:
During evolution, a new species with characteristics different from the original may be created. Sometimes the original species becomes extinct.

Question 5.
Name the scientist who explained the concept of evolution.
Answer:
The first scientist to give us a systematic explanation of the concept of evolution was Charles Darwin

Question 6.
Which species are able to survive?
Answer:
Species which are capable of adapting to environmental changes are able to survive.

Question 7.
Which species become extinct in the process of evolution?
Answer:
The species that cannot adapt to environmental changes become extinct in the process of evolution

Question 8.
What does dinosaur mean?
Answer:
Dinosaur means a ‘terrible lizard’.

Question 9.
How did the dinosaurs suddenly become extinct?
Answer:
Some sudden natural disaster or environmental change is believed to be responsible for the extinction of dinosaurs.

Question 10.
Why do we suppose that some species of dinosaurs have evolved into birds?
Answer:
Fossils of dinosaurs with wings have been discovered. Hence, it is supposed that some species of two-legged and winged dinosaurs evolved into birds.

Question 11.
How did plants and animals come into being?
Answer:
Unicellular organisms gave rise to multicellular organisms which in turn gradually evolved into various classes of plants and animals.

Question 12.
What are invertebrates?
Answer:
Animals without a backbone are called ‘invertebrates’. For example: a snail.

Question 13.
What are vertebrates?
Answer:
Animals which have a backbone are called vertebrates. For example: A cow

Question 14.
What do we call animals which live in water and also on land?
Answer:
Animals which live in water and also on land are called ‘Amphibians’. For example: Frog

Question 15.
What are Aquatic animals?
Answer:
Living organisms that live only in water are called ‘Aquatic animals’. For example Fish

Question 16.
What are Reptiles?
Answer:
Animals which crawl are called Reptiles. For example: Snake

Question 17.
Which species are the most evolved animals among vertebrates?
Answer:
Mammals are the most evolved animals among vertebrates.

Question 18.
Where do apes mostly live?
Answer:
Apes mostly lived on trees.

Question 19.
How did the Human species evolve?
Answer:
Some ape species found in grasslands were forced to move around on ground. These species evolved gradually and in time gave rise to human species.

Question 20.
What is the first human species called?
Answer:
The first human species is called the ‘primitive man’.

Question 21.
What does primitive mean?
Answer:
‘Primitive’ means ‘the first’.

Question 22.
Who are Apes?
Answer:
Apes are somewhat like humans in appearance.

Give reasons for the following :

Question 1.
In the course of time, a new species with characteristics different from the original species is created. Answer:

1. In the process of survival by adapting to environmental changes, certain physical changes occur in some animals of a species.
2. These internal changes become inherited characteristics in the following generations.
3. Thus a new species with characteristics different from the original is created.

Question 2.
A frog is an amphibian.
Answer:

1. Animals which are able to live in water and also on land are called amphibiAnswer:
2. Therefore a frog is considered an amphibian.

Question 3.
The platypus and some species of anteaters are considered mammals.
Answer:

1. Platypus and some species of anteaters are exceptions to the characteristics of mammals.
2. Though they lay eggs, they suckle their young ones.
3. Therefore, they are considered mammals.

Answer the following questions in brief :

Question 1.
Explain the concept Evolution as stated by Charles Darwin.
Answer:

1. Charles Darwin explained ‘evolution’ in the following manner. In the process of survival by adapting to environmental changes, certain internal physical changes occur in some animals of a species.
2. Over a period of time, these internal changes become inherited characteristics of the following generation.
3. Thus a new evolved species with characteristics different from the original is created
4. Sometimes the original species become extinct.
5. Sometimes more than one species evolve from the original one.

Question 2.
Give the characteristics of mammals.
Answer:
The characteristics of most of the mammals are as follows:

1. Growth of the baby in the mother’s womb, sometime before birth.
2. The baby is fed on the mother’s milk for sometime after birth.

Question 3.
How and where did the human species evolve?
Answer:

1. Apes are somewhat like humans in appearance
2. They mostly lived on trees. Those species of apes which continued to live on trees retained their original ape like form.
3. Some ape species found in grasslands were forced to move on the ground.
4. These species evolved gradually, giving rise to the human species.
5. This happened first on the ‘African continent’.

Question 4.
How did various classes of plants and animals come into being?
Answer:

1. Life on earth began with unicellular organisms known as protozoa.
2. These unicellular organisms gave rise to multicellular living things.
3. Multicellular organisms evolved gradually and thus various classes of plants and animals came into being

Question 5.
How did birds form from dinosaurs?
Answer:

1. Dinosaurs became extinct because of some sudden natural disaster or environmental change
2. Fossils of dinosaurs with wings have been discovered
3. It is thus believed that some species of two legged and winged dinosaurs evolved into birds.

Question 6.
How many and which are the stages of evolution of animals?
Answer:
There are two stages of evolution of animals. They are:

1. Invertebrates: These are animals without a backbone.
2. Vertebrates: Animals which have a backbone are vertebrates. Aquatic animals, amphibians, birds, reptiles and mammals are all vertebrates.

Glossary :

1. gradual : taking place in stages over an extended period.
2. adapt : become adjusted to new conditions.
3. extinction : the process on state of becoming extinct.
4. species : group of living organisms
5. survival : the state or fact of surviving
6. inherited : receive or be left with something from predecessor

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 17 Clothes – Our Necessity Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 1 Chapter 17 Clothes – Our Necessity

5th Std EVS 1 Digest Chapter 17 Clothes – Our Necessity Textbook Questions and Answers

1. Write the names of those objects in the list below that you would like to own.

Question 1.
Write the names of those objects in the list below that you would like to own.

1. Water bottle
2. Ball
3. Marbles
4. Laptop
5. Flower pot
6. Mobile phone
7. Bicycle
8. Scooter
9. Photoframe
10. Tiffin box

Which of these objects will you use yourself?

2. Make a note of the clothes you would choose to wear on a ‘traditional day’.

3. The names of some States are given in the table below. Write the names of the fabric or garments they are famous for.

State	Fabric/Garment
Maharashtra
Gujarat
Punjab
Odisha
West Bengal
Karnataka

Environmental Studies Part 1 Standard 5th Solutions Chapter 17 Clothes – Our Necessity Additional Important Questions and Answers

Fill in the blanks with the correct answers from the options given below:

Question 1.
Wanting clothes and really ………………. them are different things.
(a) needing
(b) kneading
(c) threading
Answer:
(a) needing

Question 2.
Wanting things when we do not need them is simply ……………….., not necessity.
(a) need
(b) greed
(c) desire
Answer:
(c) desire

Question 3.
The diversity in clothes is a part of the in our country.
(a) varsity
(b) diversity
(c) city
Answer:
(b) diversity

Question 4.
During the evolution of man, his ……………… went through many changes.
(a) clothes
(b) body
(c) hairstyle
Answer:
(b) body

Question 5.
We see a variety in the ………………… used by man through the ages.
(a) clothes
(b) utensils
(c) roads
Answer:
(a) clothes

Question 6.
After man began to hunt, he wore the ………………… of animals he had killed.
(a) bones
(b) skins
(c) horns
Answer:
(b) skins

Question 7.
…………………. has given us enough to fulfill everyone’s needs.
(a) Trees
(b) Rocks
(c) Nature
Answer:
(c) Nature

Question 8.
Man must give priority to his ………………….. and not desires.
(a) needs
(b) clothing
(c) fashion
Answer:
(a) needs

Question 9.
……………….. was famous worldwide for its textile mills.
(a) Chennai
(b) Delhi
(c) Mumbai
Answer:
(c) Mumbai

Question 10.
……………… became an important hub for financial activity in India.
(a) Goa
(b) Bangalore
(c) Mumbai
Answer:
(c) Mumbai

Question 11.
The clothes worn in different regions of the country are different depending on the local …………. .
(a) climate
(b) job
(c) trends
Answer:
(a) climate

Answer in one sentence:

Question 1.
Under what conditions can attraction to clothes turn to greed.
Answer:
When we are attracted towards the clothes shown in advertisements on TV or hoardings, this attraction can turn to greed.

Question 2.
Name some sarees from different parts of India.
Answer:
Lucknow chikan, Kashmir silk, Benarasi silk, Kadiyal, Pitambari, Pochampalli, Narayanpet, Kanjivaram, Patola and Mysore silk are some types of sarees from different parts of India.

Question 3.
Why have a variety of fabrics and costumes come into use?
Answer:
A variety of fabrics and costumes have come into use due to the diverse climatic conditions in different parts of the country.

Question 4.
How have these fabrics and costumes become available in all places?
Answer:
Due to better transport facilities, these fabrics and costumes have become available in all places.

Question 5.
When can nature take care of us?
Answer:
When man gives priority to his needs and not desires, only then will nature be able to take care of us all.

Question 6.
Why did Mumbai become a big centre for textile?
Answer:
The humid weather facilitated the manufacture of long thread for making cloth. That is why, Mumbai became a big centre for textile.

Question 7.
How did Mumbai become an important hub for financial activity in India?
Answer:
The flourishing cloth industry attracted workers from all over the country who came and settled here. From then on, Mumbai became an important hub for financial activity in India.

Question 8.
Why are clothes worn in different regions of the country different?
Answer:
The clothes worn in different regions of the country are different depending on the local climate.

Answer the following in brief:

Question 1.
List some of the textile specialties of Maharashtra.
Answer:
The examples of the textiles that are the specialties of Maharashtra are:

1. The Paithani of Paithan.
2. Yeola, Himroo shawls of Aurangabad.
3. Bedsheets and bed spreads from Solapur.
4. Handloom and powerloom cloth from Ichalkaranji.

Question 2.
On evolving, why did man feel the need for clothes?
Answer:

1. During the evolution of man, his body went through many changes.
2. One of the prominent changes was the reduction in the amount of body hair.
3. As a result, he began to need protection from the elements in certain weather conditions.
4. Thus arose the need for clothes.

Question 3.
Showcase the variety in the clothing used by man through the ages.
Answer:
1. In prehistoric times, man did not find the need to wear clothes. Later he began using the bark and leaves of trees.
2. After that he began to hunt and used the skins of animals that he killed.
3. Later he learnt to make yam from materials like cotton, wool.
4. From then on he began to use cotton cloth in a variety of ways.

Try this:

Question 1.
Visit people in your surroundings who often take shelter at places like railway or bus stations, brick kilns open grounds etc. Discuss the following points with them and make notes.

Question 1.
What is the total number of clothes they have?
Answer:
One pair which is worn and probably another pair if someone has been charitable to them.

Question 2.
What do they wear in summer?
Answer:
They do not have a choice, as they wear whatever is given to them, no matter the fit or how oversized it is.

Question 3.
What kind of clothes do they wear in winter?
Answer:
They wear layers of clothes one top of another just to ward off the winter as they cannot afford woollens nor have much shelter.

Question 4.
What clothes do they use during the monsoon season?
Answer:
They wear the same clothes that are available to them and mostly they cover themselves with a plastic sheet to protect themselves from rain.

Question 4.
What do they wear to functions and festivities?
Answer:
They do not get a chance to visit any function nor can they afford any festivities. If at all they go to any functions, they go as labourers or maids. So, they wear their daily clothes.

Question 5.
How many times a day do they change their clothes?
Answer:
Only once when they bathe, that too if they get water.

Question 6.
What did you realise from the activity above?
Answer:
I realise that I have too many clothes than I really require.

During a visit to textile industry obtain information about the following points:

Question 1.
What industry is this?
Answer:
Cottage industry/ smaH scale industry

Question 2.
What is the product of this industry?
Answer:
They are producing cloth.

Question 3.
What raw material is used to produce this fabric?
Answer:
Cotton bales and yams of thread is used to produce this fabric.

Question 4.
From where does this raw material come?
Answer:
From the farms in the nearby areas.

Question 5.
In what form is the raw material obtained?
Answer:
The raw material is obtained in the form of cotton.

Question 6.
Where is the finished product sent for sale?
Answer:
The finished product is sent to local and retail shops.

Question 7.
In which season are these textiles mainly used?
Answer:
These textiles are mainly used in monsoon and winter i.e. when the climate is humid.

Question 8.
What kinds of workers are needed for this industry?
Answer:
People with little or no education, but highly skilled to do their job.

Question 9.
Where do these workers come from?
Answer:
These workers come from remote villages in search of job in cities or from areas nearby the industry.

Question 10.
In what way have centres of textile industry changed since the olden days?
Answer:
Early days they had machines run by man power. Nowadays, every machine is run on electric power and production is swift and efficient.

Question 11.
What problems are encountered in this industry?
Answer:
It is difficult to get skilled labourers who will work honestly for long hours for a very miserable salary.

3. To find out more about the different varieties of clothes, visit a clothes market with your parents. Discuss the points given below, with the people there and make notes.

Question 1.
Look at the variety of clothes and make a list of their names.
Answer:
Salwar Kameez, saree, trousers, jeans, T-shirts, formar and informal shirts, dresses, skirts, tops, shorts etc.

Question 2.
Which of these are meant only for children, for adults or for aged people?
Answer:
For children – Shorts, skirts, tops, t-shirts, jeans
For adults – Trousers, shirts, jeans, tops, sarees etc.
For aged people – Sarees, salwar kurta, dhoti, shirts etc.

Question 3.
Find out about the various types of sarees.
Answer:
Lucknow chikan, Kashmir silk, Benarasi silk, Kadiyal, Pitambari, Pochampalli, Narayanpet, Kanjivaram, Patola, Mysore silk etc.

Question 4.
Note down the names of places famous for their sarees.
Answer:
Paithan, Lucknow, Benaras, Kashmir, Kamatak etc.

Talk to the elderly people in your family or locality to obtain this information.

Question 1.
What clothes did they wear during their childhood? Make a list of the clothes they name.
Answer:
Frock for girls and shorts and shirt for boys.

Question 2.
Take the list to a cloth/garment shop and see which of these clothes in your list are available there.
Answer:
It will be available in very few shops.

Question 3.
Find out which of the clothes are not worn any more.
Answer:
Half saree, Pawdaa, Lungi, Dhoti, Lugda etc.

Question 4.
Find out the places where these clothes used to come from.
Answer:
These clothes come from different states of India.

Question 5.
Find out why these clothes went out of use.
Answer:
People in urban areas mostly wear western clothes so they do not find these clothes trendy any more.

Glossary:

1. hub – the effective centre of an activity.
2. facilitated – made easy or easier
3. kilns – furnaces or ovens for making bricks.

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 3 Life on Earth Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 3 Life on Earth

5th Std EVS 2 Digest Chapter 3 Life on Earth Textbook Questions and Answers

1. Answer the following question in one sentence.

Question a.
What instrument do we need to see a unicellular organism?
Answer:
We need a microscope to see a unicellular organism.

Question b.
Where did the protozoa appear first?
Answer:
The protozoa appeared first in water.

2. Answer the following in brief.

Question a.
How were the sun and the planets in our solar system created?
Answer:

1. Around 4-5 million years ago, an enormous cloud of very hot gases and dust was spinning at a great speed in space.
2. Its circular motion and great speed caused its division into several portions.
3. This splitting created the sun and the planets in our solar system.

Question b.
Write any two characteristics of animals.
Answer:

1. Animals move to find food and for other purposes.
2. Some species of animals lay eggs and their young ones are born out of the egg; whereas animals of some
3. other species give birth to their young ones.

3. Find the names of the planets in the box below.

Question 1.

Answer:

1. Mercury
2. Jupiter
3. Venus
4. Mars
5. Saturn
6. Neptune
7. Earth
8. Uranus

4. Arrange the events given below in chronological order.

Question 1.
Arrange the events given below in chronological order.
(a) Water bodies appeared on the earth’s surface.
(b) The sun and the planets revolving around it were created.
(c) Protozoa appeared in water.
(d) An enormous cloud of hot gases and dust was formed in space.
Answer:
(a) An enormous cloud of hot gases and dust formed in space.
(b) The sun and the planets were formed.
(c) Water bodies appeared on the earth’s surface.
(d) Protozoa appeared in water

Activity :

Question 1.
Make a model of the solar system using balls of different sizes.

Project :

Question 1.
Visit a zoo or make a list of animals which are seen in your neighbourhood and note their characteristics.

Environmental Studies Part 2 Standard 5th Solutions Chapter 3 Life on Earth Additional Important Questions and Answers

Fill in the blanks:

1. An enormous’ cloud of very hot gases and dust spinning at a great speed was formed in ………… .
2. The cloud’s circular motion and great speed caused it to divide into several portions, creating the …………………. and ……………..
3. ………. and …………….. are planets.
4. The ………. is the only planet where life is known to exist
5. After the creation of the earth, it took about ………. years for its surface to cool down and for water bodies to be formed on it.
6. It is believed that various kinds of unicellular? organisms or living things, first appeared in …………. .
7. Unicellular organisms are known as ……….
8. Gradually, ……………….. living things developed from these unicellular ones.
9. Protozoa can only be seen through a ………..
10. The living world on the Earth consists of ………. and ………
11. Animals ………………… in order to get food or for other purpose.
12. Animals of some species lay eggs. Their young ones are born out of …………………
13. Some species, a mother gives ……………… to the young ones.
14. The protozoa are so ………….. that they cannot be seen with the naked eye.
15. Animals of some ………….. lay eggs.
16. Various kinds of .. ………… organisms first appeared in water.

Answer:

1. space
2. Sun, planets
3. Mercury, Venus
4. Earth
5. 80 crore
6. Water
7. Protozoa
8. Multi cellular
9. Microscope
10. Plants, animals
11. Move
12. Eggs
13. Birth
14. Tiny
15. Species
16. Unicellular

Answer each question in one sentence :

Question 1.
When did the formation of the earth begin?
Answer:
On the basis of scientific research, it is believed that the formation of earth came into being around 4.5 billion years ago.

Question 2.
On the onset of creation, what was first formed?
Answer:
An enormous cloud of very hot gases and dust spinning at a great speed was formed in space.

Question 3.
How were the sun and planets formed?
Answer:
The circular motion of the great cloud caused it to divide into several portions thus creating the sun and planets.

Question 4.
Name the planets in our solar system.
Answer:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are the planets in our solar system.

Question 5.
What forms the solar system?
Answer:
The sun and planets which revolve around the sun forms the solar system.

Question 6.
Which is the only planet where life is known to exist?
Answer:
The Earth is the only planet where life is known to exist

Question 7.
How many years did it take for the surface of the Earth to get cooled?
Answer:
After the creation of the Earth, it took about 80 crore years for its surface to cool down and for water bodies to be formed on it.

Question 8.
What kind of living organisms appeared first? What are they known as?
Answer:
Various kinds of unicellular organisms or living things first appeared in water, they are known as ‘Protozoa’.

Question 9.
When did the multicellular living organisms appear?
Answer:
After the creation of unicellular organisms in water, gradually, multicellular living organisms developed from the unicellular ones.

Question 10.
State the main characteristics of animals in which young ones are born.
Answer:
Animals of some species lay eggs and their young ones are bom out of an egg. While in some other species, a mother gives birth to their young ones.

Question 11.
Which planets revolve around the sun?
Answer:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are the planets that revolve around the sun.

Question 15.
How many years ago was the cloud formed in space?
Answer:
The cloud was formed in space about 4-5 billion years ago

Answer the following questions in brief:

Question 1.
How did life develop on Earth? Or What was the origin of life on earth?
Answer:

1. After the creation of the Earth, it took about 80 crore years for its surface to cool down and for water bodies to be formed on it.
2. Various kinds of unicellular organisms known as protozoa, first appeared in water.
3. Gradually, multicellular living things developed from these unicellular ones.
4. Thus, life developed on Earth.

Glossary :

1. enormous : very large
2. unicellular : consisting of one cell
3. organism : an individual animal, plant or single-called life form

Balbharti Maharashtra State Board Class 5 Environmental Studies Solutions Chapter 2 History and the Concept of ‘Time’ Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 5 EVS Solutions Part 2 Chapter 2 History and the Concept of ‘Time’

5th Std EVS 2 Digest Chapter 2 History and the Concept of ‘Time’ Textbook Questions and Answers

1. Fill in the blank.

Question a.
The calendar we use today is based on the ______________.
Answer:
The calendar that we use today is based on the Common Era/Christian Era..

Question b.
The period before the Common Era is known as the time ____________.
Answer:
The period before Common Era or Christian Era is known as the Before Christ (BC).

2. Answer the question in one sentence.

Question a.
which scientific methods are used to estimate the age of the layers of soil and the remains found in them?
Answer:
Carbon-14 analysis and Tree-rings analysis are the scientific methods used to estima~e age of the layers of soil and the remains found in them

Question b.
How is the first century of the Common Era written?
Answer:
The first century of the Common Era is written as 1-100 AD.

3. Answer the following question in brief.

Question a.
What is meant by the unilinear division of time?
Answer:

1. Seven days make a week; two weeks make a fortnight and four weeks make a month.
2. Twelve months make a year, a hundred years make a century and ten centuries make a millennium.
3. This method of dividing time is known as the unilinear division of time.

Question b.
What are the units of measuring time?
Answer:

1. A second is the smallest unit of measuring time. Sixty seconds make a minute and sixty minutes make an hour.
2. Twenty-four hours make a day; seven days make a week and two weeks make a fortnight.
3. Four weeks (two fortnights) make a month and twelve months make a year.
4. One hundred years make a century and ten centuries make a millennium.

4. Complete the chart given below.

Question 1.
Complete the chart given below.

Answer:

Activity :

Question 1.
Prepare a monthly plan for yourself on the lines of the one given below.

Environmental Studies Part 2 Standard 5th Solutions Chapter 2 History and the Concept of ‘Time’ Additional Important Questions and Answers

Fill in the blanks:

1. There are different methods of …………. time.
2. Time is ……………
3. We divide time into …………. .
4. We divide the day into two parts, and …………. .
5. Our earth rotates around its ………….. with a certain speed
6. Our Earth …………….. round the sun.
7. The sun has its own ………….
8. We receive ……….. from the sun.
9. The earth takes ………………….. hours to complete one rotation around its own axis.
10. A period of daytime and following night together make one …………. .
11. Seven days from Monday to Sunday make one ………….
12. Two weeks make a ……………….
13. Four weeks make a ……….
14. Twelve months make a …………..
15. One year is followed by another and, when hundred years go by, a ………….. completed.
16. When ten centuries, i.e. 1000 years are gone, a ………………… is completed.
17. In history books also, a chain of events that follow one after the other is presented in a … and ……………. manner.
18. ………. means in the year of Our Lord.
19. The Christian or Common Era began in the memory of ………….
20. The first century of this era is written as …….. CE or AD.
21. The period of the first millennium of this era is written as ……………. CE or AD.
22. The years of this period are counted and written in …………………. order.
23. The first century before the Common Era is indicated as ……………. BCE.
24. The first millennium before the Common Era is indicated as …………………. BCE.
25. The life time of Vardhaman Mahavir is written as ………….
26. The lifetime of Gautam Buddha is written as ………….
27. Measuring time is to measure the …………… of time.
28. Second, day, month, century, are some of the …………. of measuring time.
29. ………………. is the smallest unit of time.
30. It is an age-old custom to start a new to commemoratel a special event.
31. Chhatrapati Shivaji Maharaj started a new era known as ………………….. in 1674 to commemorate his coronation.
32. ………………… and ……………. are two eras that are used in India.
33. The founder of Islam ……………….. migrated from Mecca to Madina.
34. The ………………….. era was started to commemorate prophet Muhammad’s migration.
35. The past is the subject matter of ………….
36. The period of history goes back to the time of the birth of our ……………….. system.
37. Our solar system came into being about ………………… billion years ago.
38. Our earth isa. ………. in the solar system.
39. The earth was also formed …………. billion years ago
40. History is divided into two main periods and ………….
41. The …………………….. period is the period for which no written records are available.
42. The period for which written records are available from which history can be written is known as the …………. period.
43. There are various methods of …………. .
44. There are many layers of ………….. deposited one above the other under the surface of the ground.
45. A rough estimate of how many years ago they existed can certainly be made using ……………. methods.
46. ………………. analysis and …….. analysis are known as dating techniques.
47. …………. is a science that tells us about events that happened in the past.

Answer:

1. reckoning
2. continuous
3. period
4. day, night
5. axis
6. revolves
7. light
8. light
9. 24
10. day
11. week
12. fortnight
13. months
14. year
15. century
16. millennium
17. linear, serial
18. Anno Domini
19. Jesus Christ
20. 1-100
21. 1-1000
22. reverse
23. 100-1
24. 1000-1
25. 599 BC-527BC
26. 563 BC – 483 BC
27. length
28. units
29. second
30. era
31. Rajyabhishek Shaka
32. Shalivahan Shaka, Vikram Samvat
33. Prophet Muhammad
34. Hijri
35. history
36. solar
37. 4.5
38. Planet
39. 4.5
40. Prehistoric, historic
41. prehistoric
42. historic
43. measuring
44. soil
45. scientific
46. Carbon14 analysis, tree-rings analysis
47. History

Match the columns:

Question 1.

Column ‘A’	Column ‘B’
1. Vardhaman Mahavir	a. 563BC-483BC
2. Sunrise to sunset	b. Smallest unit of time
3. Gautam Buddha	c. Day
4. Sunset to sunrise	d. One year
5. Second	e. 599BC-527BC
6. 100 years	f. Night
7. 12 months	g. A year
8. 1000 years	h. A week
9. Seven days	i. A century
10. Two weeks	j. A fortnight
11. Christian Era	k. A millennium
12. Rajyabhishek Shaka	l. Prophet Muhammad
13. Hijri Era	m. Jesus Christ
14. Shahenshahi Era	n. Parsi Community
15. Parsi Community	o. Chhatrapati Shivaji
16. Indian’s Era	p. Hijri Era
17. Muhammad migrate	q. Shahenshahi Era
	r. Rajyabhishek Shaka
	s. Vikram Samvat

Answer:

Column ‘A’	Column ‘B’
1. Vardhaman Mahavir	e. 599BC-527BC
2. Sunrise to sunset	c. Day
3. Gautam Buddha	a. 563BC-483BC
4. Sunset to sunrise	f. Night
5. Second	b. Smallest unit of time
6. 100 years	i. A century
7. 12 months	g. A year
8. 1000 years	k. A millennium
9. Seven days	h. A week
10. Two weeks	j. A fortnight
11. Christian Era	m. Jesus Christ
12. Rajyabhishek Shaka	o. Chhatrapati Shivaji
13. Hijri Era	l. Prophet Muhammad
14. Shahenshahi Era	n. Parsi Community
15. Parsi Community	q. Shahenshahi Era
16. Indian’s Era	s. Vikram Samvat
17. Muhammad migrate	p. Hijri Era

Answer each question in one sentence:

Question 1.
How is the day divided?
Answer:
The day is divided into two parts – day and night.

Question 2.
What are the two movements of the Earth?
Answer:
The two movements of the earth are rotation and revolution.

Question 3.
What is rotation?
Answer:
The movement of the earth around its own axis at a certain speed is called the rotation of the earth.

Question 4.
What is revolution?
Answer:
The movement of the earth around the sun is called ‘revolution of the earth’.

Question 5.
What is one day?
Answer:
The period of day time and the following night together makes one day.

Question 6.
What makes one week?
Answer:
Seven days, Monday to Sunday make one week

Question 7.
What is a fortnight?
Answer:
2 weeks or 14 days make a fortnight.

Question 8.
What makes a month?
Answer:
Four weeks or 30/31 days make a month.

Question 9.
What makes a year?
Answer:
Twelve months make a year.

Question 10.
How is a century completed?
Answer:
One year followed by another year and when 100 years go by, a century is completed.

Question 11.
What is a millennium?
Answer:
When ten centuries, i.e. 1000 years have gone by, a millennium is completed.

Question 12.
What is unilinear division of time?
Answer:
The method of dividing time into day, week, month, year, century and millennium is known as unilinear division of time.

Question 13.
What is Christian Era?
Answer:
This era began in memory of Jesus Christ and so this era is called as Christian Era.

Question 14.
What is common Era?
Answer:
The calendar we use today is based on the Christian era. Since it is commonly followed all over the world, now it is called as ‘Common Era’.

Question 15.
How is the first century of Common Era written?
Answer:
The first 100 years, i.e., the first century of this era is written as years 1 – 100 CE or 1 – 100 AD.

Question 16.
How is the first millennium written?
Answer:
The period of the first millennium of this era is written as, 1 – 1000 CE or 1 – 1000 AD.

Question 17.
What is BCE or BC?
Answer:
The period before the common era is known as the time “Before Common Era (BCE)” or
“Before Christ (BC)”.

Question 18.
How are the years recorded in the BCE or BC period?
Answer:
The years of this period are counted and also written in reverse order.

Question 19.
How is the first century of ‘Before the Common Era period’ written?
Answer:
The first century before the Common Era is indicated as 100 – 1 BC.

Question 20.
How is the first millennium of ‘Before the Common Era period’ written?
Answer:
The first millennium Before the Common Era is indicated as 1000 – 1 BCE.

Question 21.
How is the life time of Vardhaman Mahavir written?
Answer:
The life time of Vardhaman Mahavir is written as 599 BC – 527 BC.

Question 22.
How is the life time of Gautam Buddha written?
Answer:
The life time of Gautam Buddha is written as 563 BC – 483 BC.

Question 23.
Name the units of measuring time.
Answer:
Second, minute, hour, day, week, fortnight, month, year, century and millennium are units of measuring time.

Question 24.
Which is the smallest unit of measuring time?
Answer:
The second is the smallest unit of measuring time.

Question 25.
Which is the most common method of measuring time in different parts of the world?
Answer:
The Common Era or the Christian Era is the most common method of measuring time in different parts of the world.

Question 26.
How is a date written?
Answer:
The date consists of the serial number of that day followed by the name or serial number of the current month and then serial number of the current year.

Question 27.
When does a new era generally commence?
Answer:
It is an age-old custom to start a new era to commemorate a special event.

Question 28.
Which era was started by Shivaji Maharaj?
Answer:
Chhatrapati Shivaji Maharaj started a new era or shaka known as ‘Rajyabhishek Shaka’ in 1674 to commemorate his coronation

Question 29.
Which two eras are used in India?
Answer:
Shalivahan Shaka’ and ‘Vikram Samvat’ are two eras that are used in India.

Question 30.
Who is Prophet Muhammad?
Answer:
Prophet Muhammad is the founder of Islam.

Question 31.
When did Prophet Muhammad start an era?
Answer:
Prophet Muhammad migrated from Mecca to Medina, so, the ‘Hijri Era’ was started to commemorate this event.

Question 32.
Which era is used by the Parsi community in India?
Answer:
The Parsi community in India uses the “Shahenshahi Era”.

Question 33.
What makes up the subject matter of History?
Answer:
The past makes up the subject matter of History

Question 34.
When did our solar system come into being?
Answer:
Our solar system came into being about 4.5 billion years ago

Question 35.
How long ago was our earth formed?
Answer:
Our Earth is a planet in the solar system, so it is presumed that the earth was also formed 4.5 billion years ago.

Question 36.
Which two main periods is the time in History divided?
Answer:
The time in history is divided into two main periods: Pre-historic and Historic period.

Question 37.
What is Pre-historic period?
Answer:
The Pre-historic period is the period for which no written records are available.

Question 38.
What is Historic period?
Answer:
The period for which written records are available from which history is written is known as Historic period’.

Question 39.
What is years before the common era?
Answer:
The events before the beginning of the common era are mentioned as having occurred a certain number of years before the common era.

Question 40.
What are evidences?
Answer:
Evidence is usually in the form of man-made artifacts and fallen structures.

Question 41.
How can we determine the time of the events that took place thousands of years ago?
Answer:
With the help of artifacts and also using scientific methods we can determine the time of the events that took place thousands of years ago.

Give reasons for the following :

Question 1.
Time is divided into periods.
Answer:
i. There are different methods of reckoning time
ii. Time is continuous, but for our convenience we divide time into periods.

Question 2.
The Christian era is also known as the common era.
Answer:

1. The calendar we use today is based on the Christian era.
2. This era is most widespread and commonly used all over the world.
3. Therefore this era is now called the Common era.

Question 3.
Time in history is divided into two main periods.
Answer:

1. The span of 4.5 billion years, since the earth’s formation is a vast period of time.
2. It is not easy to grasp this entire period all at оnсе.
3. It is necessary to divide it into a number of stages in order to understand it better.
4. Therefore, Time in history is divided into two main periods, i.e. Pre-historic and Historic period.

Question 4.
The earth receives continuous light from the sun, but then too we see light only in day time and nights are dark.
Answer:

1. Due to the earth’s rotation around its own axis, only a part of the earth’s surface faces the sun.
2. It is only this part of the surface that becomes bright
3. The part that is not facing the sun remains dark.
4. Therefore we see light only in daytime even though the earth receives continuous light from the sun.

Question 5.
When we measure time, we actually measure its length.
Answer:

1. There are various methods of measuring time.
2. These methods allow us to identify a particular day, month or year with respect to an earlier or later day, month or year.
3. Thus, when we measure time, we actually measure its length.

Answer the following questions in brief :

Question 1.
How are days and nights formed?
Answer:

1. The earth receives light from the sun.
2. As the earth rotates around its axis, that part of the surface which turns towards the sun becomes bright i.e. day.
3. The part that moves away has darkness i.e. night thus days and nights are formed.

Question 2.
What is the unilinear division of time?
Answer:

1. Seven days from Monday to Sunday, make one week.
2. Two weeks make a fortnight.
3. Four weeks make a month.
4. Twelve months make a year.
5. One year is followed by another and, when 100 years go by, we have a century.
6. When 10 centuries, ie. 1000 years are gone, a millennium is completed.
7. Such a method of dividing time is known as a unilinear division of time.

Question 3.
Explain time before the common or Christian era.
Answer:

1. The period of time before the common era is known as the time before Common Era (BCE) or Before Christ (BC).
2. The years of this period are counted and written in reverse order.
3. The first century before the common era began at the year 100 BCE and ended with 1 BCE.
4. It is written as 100-1 BCE.

Question 4.
How do we measure the length of time?
Answer:

1. There are various methods of measuring time.
2. These methods allow us to identify a particular day, month, a year with respect to an earlier or later day, month or year.
3. For example, if it is June, then we know that the earlier month was May and the next one will be July.
4. If today is 10th of June, then we can tell that tomorrow will be 11th of June and yesterday was 9th of June.
5. Thus, when we measure time we actually measure its length.

Question 5.
How are dating techniques used?
Answer:

1. By using dating techniques we learn how old the layers of soil and the remains found in them are.
2. Then we can put approximate dates to their occurrence?
3. For example, if an earthen pot is estimated to be five thousand years old with the help of dating techniques, we can say that the earthen pot dates back roughly to 3000 BC
4. Then we can conclude that the period of the culture to which the pot belongs must be around 3000 BC.

Question 6.
What is meant by Prehistoric period?
Answer:

1. ‘Prehistory’ means ‘before history’.
2. The prehistoric period is the period for which no written records are available.
3. The history of this period has not been written down.

Question 7.
What is meant by Historic period?
Answer:

1. Unlike the Prehistoric period, we can trace the events and progress of the historic period.
2. The historic period is the period for which written records are available.
3. We can use these written records to write history.

Glossary :

1. commemorate : remember and show respect for.
2. estimate : roughly calculate or judge the value.
3. unilinear : developing in a steady way.
4. coronation : the ceremony of crowning the ruler.
5. reckoning : the action of calculating
6. widespread : spread among a large o number or over a large area
7. occurrence : an incident or an event