Photochemical smog developed with the advent of
A) coal burning stoves.
B) the industrial revolution.
C) smelting of ores.
D) automobiles.

Question

Quizplus · Accepted Answer

Photochemical smog is mainly caused by the emissions of volatile organic compounds (VOCs) and nitrogen oxides (NOx) from vehicles, which react with sunlight to form ozone and other harmful compounds. While coal burning stoves, industrial processes, and smelting of ores do contribute to air pollution, they are not the primary causes of photochemical smog.

Photochemical Smog Developed with the Advent of