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Microbes In Human Welfare

Question

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Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?

Propane

Mustard gas

Marsh gas

Laughing gas

Solution

C.

Marsh gas

The decomposition of sludge by anaerobic bacteria in sewage-treatment processes produces marsh gas(methane).

Some More Questions From Microbes in Human Welfare Chapter

Name the different vitamins which are produced by microorganisms.

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How can a small amount of curd added to fresh milk convert it into curd ?

What is toddy ?

What are fermentors ?

What is primary sludge ?

What are flocs ?

What is relationship between BOD and organic matter in sewage ?

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