Question: In Kolkata, major air pollution is caused by-
(a) Fungal spores
(b) Algae
(c) Hydrocarbons
(d) Carbon monoxide
Answer: (d) Carbon monoxide
Question: In Kolkata, major air pollution is caused by-
(a) Fungal spores
(b) Algae
(c) Hydrocarbons
(d) Carbon monoxide
Answer: (d) Carbon monoxide
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