NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

Class 8: NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

The document NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8 is a part of the Class 8 Course NCERT Textbooks (Class 6 to Class 12).
All you need of Class 8 at this link: Class 8

Exercise

Q1. Fill in the blanks:

(a) A place where animals are protected in their natural habitat is called ……………..

Ans: Sanctuaries

(b) Species found only in a particular area is known as ……………..

Ans: Endemic

(c) Migratory birds fly to far away places because of …………….changes.

Ans: Climatic

Wildlife Sanctuary.Wildlife Sanctuary.


Q2. Differentiate between the following:

(a) Wildlife sanctuary and biosphere reserve

Ans:
NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

(b) Zoo and wildlife sanctuary

Ans:
NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

(c) Endangered and extinct species

Ans:
NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

Flora and fauna.Flora and fauna.

(d) Flora and fauna

Ans:
NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8


Q3. Discuss the effects of deforestation on the following:

(a) Wild animals

Ans: The habitat of wild animals is drastically reduced. This creates scarcity of food and dwelling place for wild animals.

(b) Environment

Ans: Green plants prepare their own food and all other organisms depend for their food on green plants. So, deforestation disturbs the food chain. Green plants also help in precipitation and deforestation reduces the amount of precipitation. Green plants take in carbon dioxide and release oxygen during photosynthesis and thus maintain the balance of carbon dioxide and oxygen in the environment. Deforestation disturbs this balance.

Village.Village.

(c) Villages (Rural areas)

Ans: Deforestation leads to soil erosion and results in flash floods. This hampers agricultural activities and thus disturbs the people in rural areas.

(d) Cities (Urban areas)

Ans: Cities depend on rural areas and forests for many items; like food and timber. Deforestation can reduce the supply of necessary items to people in urban areas.

(e) Earth

Ans: The whole earth is full of various ecosystems which together make the biosphere. Deforestation disturbs the balance in the biosphere. It disturbs climatic patterns.

(f) The next generation

Ans: The next generation would get an environment which would be in very bad shape; because of deforestation. Life would be very difficult for the next generation.


Q4. What will happen if:

(a) We go on cutting trees.

Ans: Deforestation will result in environmental degradation and desertification. It will also reduce groundwater reserve.

Deforestation.Deforestation.

(b) The habitat of an animal is disturbed.

Ans: The animal would become extinct.

(c) The top layer of soil is exposed.

Ans: It will lead to loss of fertility of soil and finally to desertification.


Q5. Answer in brief:

(a) Why should we conserve biodiversity?

Ans: A rich biodiversity is necessary to protect our environment. That is why we need to conserve biodiversity.

(b) Protected forests are also not completely safe for wild animals. Why?

Ans: Due to growing human population, human interference is on the rise even in protected forests. Moreover, poaching is still rampant in many parts. This is the reason that even protected forests are not completely safe for wild animals.

(c) Some tribals depend on the jungle. How?

Ans: Tribal which lives near a jungle take many forest produce for their use. For example; they take firewood which is used as kitchen fuel. They hunt for some game animals. They utilize many plants as herbs and medicines. They also collect some forest produce which are used as raw materials for various industries.

(d) What are the causes and consequences of deforestation?

Ans: Causes of deforestation are as follows:

  • Clearing land for human habitation and cultivation
  • Need of wood for building houses and factories.
  • Need of wood for making furniture.

Consequences of deforestation are as follows:

  • Soil erosion
  • Depletion of groundwater
  • Flash flood
  • Global warming

Jungle.Jungle.

(e) What is Red Data Book?

Answer: The Red Data Book is a list of endangered species. It is released by ICUN (International Union for Conservation of Nature). It was first released in 1963.

(f) What do you understand by the term migration?

Ans: Many animals travel to faraway places in search of food and breeding ground; when climatic changes take place in their natural habitat. Migration is usually an annual event. Birds are more famous as long distance migratory species. Many birds from Siberia come to India during winter months; in search of warm climate and food.


Q6. In order to meet the ever-increasing demand in factories and for shelter, trees are being continually cut. Is it justified to cut trees for such projects? Discuss and prepare a brief report.

Ans: According to a United Nations report, agriculture is the major cause of deforestation. Subsistence farming is responsible for 48% of deforestation; commercial agriculture is responsible for 32% of deforestation; logging is responsible for 14% of deforestation and fuel wood removals make up 5% of deforestation. This report shows that agriculture is responsible for 80% of deforestation. Logging which is done to supply wood for construction activities contributes 14% but this also a significant number.

Since human beings also need natural resources for their use so they have every right to exploit natural resources for their benefit. But being the most intelligent species on the earth, it is our responsibility to protect the earth. This can be done by proper planning for afforestation so that removed trees can be replaced with new trees.


Q7. How can you contribute to the maintenance of green wealth of your locality? Make a list of actions to be taken by you.

Ans: I can take following actions to contribute to the maintenance of green wealth in my locality:

  • Planting new trees.
  • Convincing other people to plant new trees.
  • Taking out rallies to create awareness among people.
  • Coordinating with local authorities for proper help.

Q8. Explain how deforestation leads to reduced rainfall.

Ans: Green plants lose water by way of transpiration. This contributes a lot towards atmospheric moisture. Thus, green plants have major contribution in precipitation. Due to this, deforestation leads to reduced rainfall.


Q9. Find out the information about the national parks in your state. Identify and show their location on the outline map of India.

Ans: Some major national parks have been shown in the following map of India. You can select the national parks which are in your native state and can fill the map accordingly.

NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8


Q10. Why should paper be saved? Prepare a list of ways by which you can save paper.

Ans: Paper is made from wood pulp; which means trees need to be cut for making paper. By saving paper, we can in fact save the forest. We can do following to save paper:

  • Use old newspaper and notebooks for making rough work while doing your homework.
  • Old envelopes can also be used for doing the rough work.
  • Paper should be recycled to minimize the need of cutting trees.
  • Schools should encourage online submission of reports and assignments so that paper can be saved.
  • Don’t take a printout unless it is absolutely necessary.

Q11. Complete the word puzzle:

Down

1. Species on the verge of extinction.

2. A book, carrying information about endangered species.

5. Consequence of deforestation.
Across

1. Species which have vanished.

3. Species found only in a particular habitat.

4. Variety of plants, animals and microorganisms found in an area.
NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

Ans: Down
1. Endangered
2. Red Data Book
5. Deserts
Across
1. Extinct
3. Endemic
4. Biodiversity

NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

The document NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8 is a part of the Class 8 Course NCERT Textbooks (Class 6 to Class 12).
All you need of Class 8 at this link: Class 8

Related Searches

Objective type Questions

,

mock tests for examination

,

Semester Notes

,

Exam

,

Extra Questions

,

past year papers

,

ppt

,

Free

,

Viva Questions

,

shortcuts and tricks

,

NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

,

Sample Paper

,

Important questions

,

Previous Year Questions with Solutions

,

practice quizzes

,

Summary

,

MCQs

,

NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

,

NCERT Solutions - Conservation of Plants & Animals Notes | Study NCERT Textbooks (Class 6 to Class 12) - Class 8

,

pdf

,

video lectures

,

study material

;