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Polluted water can be purified by using...

Polluted water can be purified by using

A

Micro-organisms

B

Algae

C

Pesticides

D

Fishes

Text Solution

Verified by Experts

The correct Answer is:
A
Micro organisms play an important role to decompose organic waste into simple inorganic substance. BOD refers to the amount of oxygen required by micro organism to purify polluted water.
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