Question

Fertilw soil has lots of humus. Why?

Answer 1

Answer:

Fertile soil has lots of humus because it contains microorganisms that decompose the organic matter present in soil and help in the formation of humus. Humus is a source of minerals which absorbs water and makes the for porous for easy passage of plant roots.

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Answer 2

Explanation:

Fertile soil has lots of humus because it contains microorganisms that decompose dead organic matter present in soil and help in the formation of humus. Humus is a sources of mineral, absorbs water and makes the soil porous for easy passage of plant roots.