Science, asked by dilipbishnoi446, 11 days ago

Solid part of waste during waste water treatment is called
(a) scum
(b) sludge
(c) contaminants
(d) froth

Answers

Answered by ojassingh2112012

0

Answer:

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Answered by shifaf296

0

Answer: option (b) sludge

Explanation:

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