Question

Why earthworm lives in burrows

Answer 1

Their nutrition comes from things in soil, such as decaying roots and leaves. Animal manures are an important food source forearthworms. They eat living organisms such as nematodes, protozoans, rotifers, bacteria, fungi in soil. ... Worms also "swallow" soil as they burrow.

Answer 2

worms eat dirt or dust. they burrow into the soil and normally live underground,where they are protected from the sun and so won't dry up . they get oxygen from the soil also to breathe . they breathe from the surface of their body.

i think this must help you....