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Which one of the following is a secondary pollutant?

Which one of the following is a secondary pollutant?

Q. Which one of the following is a secondary pollutant?

(A) Ozone

(B) Carbon Monoxide

(C) Hydrocarbon

(D) Volatile Organic Carbon (VOC)

Solution: Ozone

Solution: Secondary pollutants are type of pollutant that is formed in the atmosphere. These pollutants are not emitted directly from a source, such as vehicles or power plants. When primary pollutants formed from combustion processes react in the atmosphere, secondary pollutants are formed. For example, ozone. So, the correct answer is ‘O3

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