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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. | |