3
Question
Aeration of soil can be increased by
Aeration of soil can be increased by
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Solution
The correct option is A Earthworm
Earthworms increase the soil porosity by improving the soil aggregation and by creating permanent burrows. By increasing the porosity, they help in the exchange of gases with the atmosphere. They also increase the water holding capacity of soil, moisture content, soil texture and degrade pesticide residues. They decompose the organic matter and add humus to the soil. So, the correct option is A.
Earthworms increase the soil porosity by improving the soil aggregation and by creating permanent burrows. By increasing the porosity, they help in the exchange of gases with the atmosphere. They also increase the water holding capacity of soil, moisture content, soil texture and degrade pesticide residues. They decompose the organic matter and add humus to the soil. So, the correct option is A.
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