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Which one of the following statement is ...

Which one of the following statement is not true ?

A

Oxides of sulphur, nitrogen and carbon are the most widespread air pollutant

B

pH of drinking water should be between 5.5-9.5

C

Concentration of DO below 6 ppm is good for the growth of fish

D

Clean water would have a BOD value of less than 5 ppm

Text Solution

Verified by Experts

The correct Answer is:
C
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