Which one of the following is not a bioindicator of water pollution?

Which one of the following is not a bioindicator of water pollution?

Options

(a) Blood-worms
(b) Stone flies
(c) Sewage fungus
(d) Sludge-worms

Correct Answer:

Stone flies

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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