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Earthworm is called as friend of farmers...

Earthworm is called as friend of farmers.

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(i) Earthworm feeds on dead and decaying matter from the soil, and digests them.
(ii) Their excreta gets mixed with soil which increases the nitrogen content of the soil and it becomes fertile.
(iii) Earthworms are burrowing animals which make the soil porous and due to this oxygen can reach deeper in the soil, thus soil gets aerated.
(iv)' Due to this, fertility and productivity of soil increases, hence, it is called 'Friend of Farmers'.
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