Pesticides and herbicides are main source of
A. water pollution
B. air pollution
C. soil pollution
D. none of the above
Answer: Option C
A. water pollution
B. air pollution
C. soil pollution
D. none of the above
Answer: Option C
The term 'brown air' is used for
A. Acid fumes
B. Photochemical smog
C. Sulphurous smog
D. Industrial smog
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