_Presence of non-biodegradable substances, like alkyl benzene sulphona – McqOptions

MCQOPTIONS

1.	_Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes$?
A.	Fire hazards
B.	Explosion hazards
C.	Persistent foam
D.	Depletion of dissolved oxygen
Answer» D. Depletion of dissolved oxygen

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