Question

4.
Answer the following questions:
1. What is biodiversity?
2. Why are wild life sanctuaries important for conservation of plants and animals?
3.
Does soil erosion affect the fertility of soil? How?​

Answer 1

Explanation:

1- Biodiversity refers to the variety of living organisms existing on the earth. Biodiversity includes all forms of life plants, animals and microorganisms.

2- Wild life sancturies are important for conservation of plants and animals because day by day some species of plants and animals are at high risk of becoming extinct due to deforestation.And in Wild life sanctuaries harvesting of trees , collection of minor forest products and poaching are prohibited.

3- Yes, Soil erosion effect the fertility of soil by removing the top layers of soil that contains the fertile humus, thus makes the soil less fertile.

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Answer 2

Explanation:

B.

Fill in the blanks :

is a major cause which leads to the change in soil properties.

2. The increase in temperature on earth disturbs the

and reduces

3. The causes of deforestation have been fors t irsand

4. Clearing of forests and using that land for other purposes is termed as