NEET Biology question

*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 soilCorrect
(C)They are used as fish meal
(D)They kill the birds due to biomagnification of chlorinated hydrocarbons

Answer: (B)

Solution

Earthworms are considered "farmer's friends" because their burrowing aerates and loosens the soil, their nutrient-rich castings enrich it, and they continuously drag organic debris from the

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Question ID VK-111279