Question

3. Why is the air present in soil useful?
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Answer 1

Answer:

It helps the root to take oxygen

Answer 2

Answer:

The air which is present in the soil

is useful because -

• The soil formation process and the soil nutrients addition process needs the active participation of various microorganisms that are living in the soil. For the survival and the reproduction of these necessary microorganisms, the soil air is extremely necessary.

• The roots of the plant don't get any access to the atmospheric oxygen and that's why the roots of a plant are dependent on the soil trapped oxygen. Now, this soil trapped oxygen is contained by the soil air.

Hope it helps.

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