Political Science, asked by sandeepsingh11264, 9 months ago

drainage system and sewerage​

Answers

Answered by ushashrimali1983
3

A drain is a pipe that serves only one building, conveying water and waste water away to a sewer. ... Sewers (sewerage), are the underground networks of pipes that carry sewage (waste water and excrement), waste water and surface water run-off, from drains to treatment facilities or disposal points.

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