NCERT Class VIII Science Solutions: Chapter 7-Conservation of Plants and Animals Part 4

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Question 4:

What will happen if?

  1. We go on cutting trees.

  2. The habitat of an animal is disturbed.

  3. The top layer of soil is exposed.

Answer:

  1. We go on cutting trees:

  2. If we go on cutting trees, rainfall and fertility of soil will decrease and the changes of natural calamities will increase. It will also lead to decrease in water holding capacity of the soil which will result in floods. Animal life will also be affected.

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Cutting Trees

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  1. The habitat of an animal is disturbed:

  2. The survival of the animals will become difficult it their natural habitat is disturbed. They will not have any space to live and to breed. As a result they will not survive and also because of scarcity of food the animals have started wandering in the nearby villages and targeting domestic animals as their prey.

  3. The top layer of soil is exposed:

  4. If the top layer of soil is exposed it will wash away with water. The removal of top layer will gradually convert the fertile land into deserts. Moreover the soil washed away with water will be deposited in the river bed resulting in decreasing the depth of rivers. The chances of floods will increase many folds.

This diagram shows the top layer of soil is exposed

The Top Layer of Soil is Exposed

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