Choose the correct statement about soil?

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Considered to be a complex mixture of minerals and organic substances,

It is the uppermost layer of earth.

It is an important factor for plant life and essential for life on earth.

All of the above

answer is D.

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Detailed Solution

Concept- Soil is formed by the mixture of matter, minerals and organic matter and forms the upper surface of the earth. It supports life. It consists of both organic and inorganic compounds. The uppermost layer of oil is humus that is remains of dead and decaying parts of plants and animals.it makes soil fertile. Other layers of soil are subsoil, parent material, and bed rocks.
Soil can be classify as transported soil and residual soil, soil that get transferred to another place after weathering process is known as transported soil and soil that is present near its parent rock after weathering process is called residual soil.
Hence, option 4 is the correct answer.

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