TOPIC : HOW IS SOIL FORMAD

GIVE ANSWERS TO FOLLOWING:

1: What is soil?

Ans. The upper most layer of the earth is called soil.

2: How is soil formed?

Ans. Soil is formed by broken pieces of rocks and decayed dead bodies of plants and animals.

3: Rocks often seem to be very hard, then how do they under go breakage?

Ans. Severe weather conditions such as sun shine; snow fall, heavy rains, typhoon etc. cause breakage in rocks called weathering.

4: What is importance of soil?

Ans.  Soil is important for us as;

♣ It is growing medium for the plants.

♣It is habitat for many organisms.

♣Soil prevent flooding as it soaks up water.

5: If there is no soil we will get deprived of leather, wool, meat along with vegetables and fruits. Why it is said so?

Ans. We get leather, wool and meat from animals, as they do depend upon plants. Indirectly we depend upon plants. Then obviously, if there is no soil that is growing medium for plants we will have nothing.

6: What is Humus? Give its importance in soil?

Ans. Decayed dead bodies of animals and plants. It makes the soil fertile.