A) \[N{{O}_{3}}\]
B) \[S{{O}_{2}}\]
C) Hydrocarbons
D) \[C{{O}_{2}}\]
Correct Answer: D
Solution :
\[C{{O}_{2}}\]is normaly not an air pollutant. It is necessary for photosynthesis. Its rise has been due to large scale deforestation and large scale combustion of fossil fuels. When \[C{{O}_{2}}\]goes to high concentration it causes global warming.
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