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 soil
• C. They are used as fish meal
• D. They kill the birds due to biomagnification of chlorinated hydrocarbons

Answer 1

Answer: (B)

Pheretima posthuma is highly useful as they make the soil porous, leave their castings and take organic debris in the soil