It is found that crop fields located near the highways give less yield due to low photosynthetic activity and stunted growth. The pollutant responsible for this is

P A N

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C F C s

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H N O_{3}

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M I C

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Solution

The correct option is A $P A N$
In the presence of strong sunlight and hot weather a series of chemical reactions involving nitrogen oxide and hydrocarbons may produce certain photo oxidant chemicals which are toxic to plants. Two such photo oxidants are PAN or Peroxyacetylnitrate-C $H_{3}$ CO. $O_{2}$ .N $O_{2}$ and ozone.
So, the correct answer 'PAN'

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