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What are flocs?

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in Biology – Class 12 by (271k points)
What are flocs?

(a) Masses of fungi

(b) Masses of algae

(c) Masses of animals

(d) Masses of bacteria

The question was asked in examination.

Asked question is from Microbes in Sewage Treatment in chapter Microbes in Human Welfare of Biology – Class 12

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The correct choice is (d) Masses of bacteria

Easiest explanation: The constant agitation of primary effluent allows vigorous growth of useful aerobic microbes into flocs which are the masses of bacteria associated with fungal filaments to form mesh-like structures.

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