Photochemical smog is produced when:
A) oxides of nitrogen and carbon dioxide are exposed to sunlight together
B) oxides of nitrogen and unburned hydrocarbons are exposed to sunlight together.
C) oxides of nitrogen and carbon monoxide are exposed to sunlight together
D) carbon monoxide and unburned hydrocarbons are exposed to sunlight together

Question

Quizplus · Accepted Answer

Photochemical smog is produced when oxides of nitrogen and unburned hydrocarbons are exposed to sunlight together, leading to a complex chemical reaction that forms ozone and other pollutants.

Photochemical Smog Is Produced When