Question

Why does drain water smell foul ​

Answer 1

Answer:

Drain water contains all sorts of waste water from different households including dish washing water, toilet etc, so it smells really foul

Answer 2

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HERE IS YOUR ANSWER.

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Why does drain water smell foul ?

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The drain water smell foul. Because the drain water contains biodegradable materials. So when the biodegradable materials are present, the microorganisms make the biodegradable materials into small molecules. So we get a foul smell of the drain water.