Question

Atmosphere of big/metropolitan cities is polluted
most by
(a) automobile exhausts
(b) pesticide residues
(c) household wastes
(d) radioactive fall-out

Answer 1

Answer:

household wastes..............

Explanation:

...

Answer 2

The atmosphere of big metropolitan cities:

• Option “A” is correct i.e. automobile exhaust.

• The atmosphere of big/metropolitan cities is polluted by automobile exhausts.

• In the big/metropolitan cities, the chief cause of air pollution occurs to be the vehicular exhaust comprising the oxides of carbon, nitrogen, sulfur and particulate matter. The increase in the population and improved living standards cause an increase in the number of vehicles working on the roads. Their exhaust greatly worsening air quality.

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