Sewage water can be purified for recycling with the action of [CBSE PM – McqOptions

MCQOPTIONS

1.	Sewage water can be purified for recycling with the action of [CBSE PMT 1990]
A.	Aquatic plants
B.	Penicillin
C.	Micro-organisms
D.	Fishes
Answer» D. Fishes

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