Traps________?

872Civil EngineeringMedium

ACreate symphonic action to increase the quick disposal of sewerage

BDissolve the foul gases

CAre used to trap the rats entering sewers

DAre water seals which prevent the entry of foul gases

Correct answer

D. Are water seals which prevent the entry of foul gases

Explanation

The correct answer is Are water seals which prevent the entry of foul gases.

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