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At do below 4 mg/l, water at normal temp...

At do below 4 mg/l, water at normal temperature is
(a) heavily polluted
(b) moderately polluted
(c) little polluted
(d) nearly pure

A

heavily polluted

B

moderately polluted

C

little polluted

D

nearly pure.

Text Solution

Verified by Experts

The correct Answer is:
A
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