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Which one of the following statements is...

Which one of the following statements 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

Growth offish is facilitated if the DO value is less than 6 ppm. Decrease in Do value means increase in water pollution.
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