Which of the following often contributes to major smog occurrences?

Question

Quizplus · Accepted Answer

All of the factors listed contribute to smog occurrences. Heavy motor vehicle traffic releases pollutants such as nitrogen oxides and particulate matter into the air. High temperatures and sunny weather can cause these pollutants to react with sunlight and form ozone, a major component of smog. Lack of wind can prevent these pollutants from dispersing, leading to the buildup of smog in a particular area.

Which of the Following Often Contributes to Major Smog Occurrences