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Which of the following conditions shows ...

Which of the following conditions shows the polluted enviorment ?

A

pH of rain water is 5.6

B

amount of carbon dioxide in the atmosphere is 0.03%

C

biochemical oxygen demand is 10 ppm

D

eutrophication

Text Solution

Verified by Experts

The correct Answer is:
C, D
Biochemical oxygen demand greater than 5 ppm shows water is polluted. Eutrophication, i.e. flow of phosphatic fertilizers waste into lakes, resulting into the death of fish is pollution of water
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