CBSE Class 7 Answered
How earthworms increase soil fertility?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Earthworms ingest soil, digest the organic matter present in it and excrete soil full of plant nutrients known as worm cast which makes soil fertile. They make burrows into the soil and thus they aerate the soil.
Answered by | 04 Jun, 2014, 03:23: PM
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