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Pheretima posthuma is highly useful as...

Pheretima posthuma is highly useful as

A

Their burrows make the soil loose

B

They make the soil porous, leave their castings and take organic debris in the soil

C

They are used as fish meal

D

They kill the birds due to biomagnification of chlorinated hydrocarbons

Text Solution

Verified by Experts

The correct Answer is:
B
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