Which of the following is a secondary pollutant ? [2019, S] (a) CO (b) CO2 (c) O3 (d) SO2

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Muskan Anand

2 years ago

Option C.Tropospheric ozone or bad ozone is formed by elements such as COCO, nitrogen oxide reacts in presence of sunlight. Stratospheric ozone protects the planet from UV rays. It is a secondary pollutant.

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