Presence of volatile compounds like gasoline, oil, alcohol, ether etc. – McqOptions

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1.	Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause___________________?
A.	Explosion
B.	Non biodegradable foam
C.	Undesirable plant growth
D.	Corrosion
Answer» B. Non biodegradable foam

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