Question:
What percentage of impurities make domestic sewage unfit for human use?
What percentage of impurities make domestic sewage unfit for human use?
Updated On: Jun 21, 2022
- 0.01
- 0.001
- 0.0001
- 0.00001
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The Correct Option is B
Solution and Explanation
Domestic sewage consists of everything that passes into sewer from residential areas i.e., human excreta, food residue, detergents, etc. Only 0.1 % of municipal waste water consists of sewage impurities. The rest 99.9% is water. Sewage contains pathogens too.
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