Solution of Chapter 7. Conservation of Plants and Animals (NCERT - Science Book)

Fill in the blanks:

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

(b) Species found only in a particular area are known as_________.

(c) Migratory birds fly to faraway places because of ____________changes.

Differentiate between the following.

(a) Wildlife sanctuary and biosphere reserve

(b) Zoo and wildlife sanctuary

(c) Endangered and extinct species

(d) Flora and fauna

Discuss the effects of deforestation on the following.

(a) Wild animals

(b) Environment

(c) Villages (Rural areas)

(d) Cities (Urban areas)

(e) Earth

(f) The next generation

What will happen if:

(a) we go on cutting trees.

(b) the habitat of an animal is disturbed.

(c) the top layer of soil is exposed.

Solution in brief:

(a) Why should we conserve biodiversity?

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

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

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

(e) What is Red Data Book?

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

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.

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

Explain how deforestation leads to reduced rainfall.

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

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

Complete the world 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