Treatment of waste-water is done by the - Vidyadip

MCQ

Treatment of waste-water is done by the

A
Photoautotrophic microbes, naturally present in sewage
B
Chemoautotrophic microbes, naturally present in sewage
✓
Heterotrophic microbes naturally present in sewage
D
Heterotrophic microbes inoculated in the sewage from outside only

✓

Answer

Correct option: C.

Heterotrophic microbes naturally present in sewage

c
Treatment of waste water is done by heterotrophic microbes naturally present in sewage

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