First slide

Water Pollution and its Control

Question

Which of the following minimum percentage of impurities by domestic sewage make the water unfit for human use?

Easy

A

1
B

5
C

0.1
D

0.5

Solution

All domestic sewage and industrial effluents, without being treated are dumped into nearby river. A mere 0.1 per cent impurities make domestic sewage unfit for human use.

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