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The photochemical smog was first seen in the year:
Related MCQs
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In big cities, air pollution is mainly due to:
As compared to tap water the BOD of sewage polluted water shall be:
The major drawback of DDT as a pesticide is that:
Every pesticide develops its own failure as its repeated use leads to:
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Sewage drained into water bodies kills fishes because:
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Which of the following is the use of lichens in case of pollution?
The photochemical smog was first seen in the year:
A. 1933
B. 1943
C. 1953
D. 1963
Correct Answer:
1943
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Last Updated:
May 23, 2024