1.

Which of the following air pollutants is wrongly matched with the effect it causes?

A.  Dust - reduces photosynthesis in green plants.
B. Carbon monoxide - reduces oxygen in the blood.
C. Chlorofluorocarbons - damages nerves and tissues.
D. Nicotine - hardens and narrows blood vessels.
Answer» D. Nicotine - hardens and narrows blood vessels.


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