Which is a gas commonly found in smog ? a. ozone b. particulate matter c. carbon monoxide d. nitrogen oxides

A gas commonly found in smog is ozone. Correct A

Smog generally occurs in the lower part of the atmosphere is composed mainly of tropospheric ozone (O3), primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NOx) and ammonia gas.

answer; philip zimbardo;