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Question
Which of the following are the pollutants that a traffic constable is likely to inhale?
1.Carbon monoxide
2.Lead
3.Sulphur dioxide
4.Oxides of nitrogen
Options:
A .  1, 2 and 3
B .  1, 2 and 4
C .  1, 3 and 4
D .  2, 3 and 4
Answer: Option C
:
C

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