Which of the following is not a general pollutant of atmosphere?
A
CO2
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B
SO2
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C
SO3
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D
NO2
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Solution
The correct option is ACO2 Carbon dioxide is not a natural pollutant since 0.03% composition of carbon dioxide is present in atmospheric gasses but this gas becomes pollutant when its concentration increases in the air crossing the permissible limit and posseses various dangers to global temperature.