Which of the following is categorized as a secondary pollutant?
A) Carbon monoxide
B) Ozone
C) Carbon dioxide
D) Sulfur dioxide
E) Hydrocarbons

Question

Quizplus · Accepted Answer

Secondary pollutants are those that are formed by chemical reactions in the atmosphere, often involving primary pollutants. Ozone is formed from reactions involving nitrogen oxides and volatile organic compounds in the presence of sunlight. The other options are primary pollutants themselves.

Which of the Following Is Categorized as a Secondary Pollutant