Question

The thin layer of grainy substance covering the surface of the earth is called

Answer 1

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Answer:

The thin layer of grainy substance covering the surface of the earth is called soil .

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Answer 2

Answer:

The thin layer of grainy substance covering the surface of the earth is called soil.

Explanation:

• In the upper most layer of the earth, soil is available in the loose material form.

• Soil is made up of organic matter, minerals and weathered rocks that happens through the process of weathering.

• The soil formation depends up on five main factors:

 1) Parent rock: It means the rock from which the soil is formed it

decides the colour, texture ,chemical property ,mineral, permeability of

 the soil.

2) Relief: Relief means topography height of land, like slope determine

accumulation of soil.

3) Flora fauna and microorganism .

4) Climate: temperature, rainfall influence the rate of weathering and

humus formation.

5) Time: Time determines thickness of soil profile.