Sullage water is-
A. waste water released from kitchen
B. waste water released from toilets
C. waste water released from factories
D. waste water released from hospitals
Answer: Option A
A. waste water released from kitchen
B. waste water released from toilets
C. waste water released from factories
D. waste water released from hospitals
Answer: Option A
The term 'brown air' is used for
A. Acid fumes
B. Photochemical smog
C. Sulphurous smog
D. Industrial smog
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