Which of the following is not a major source of outdoor air pollution?

Question

Quizplus · Accepted Answer

Pet dander is not a major source of outdoor air pollution. While pet dander can contribute to indoor air pollution, it is not significant enough to affect outdoor air quality on a large scale. Instead, the major sources of outdoor air pollution include vehicle emissions, coal burning factories, volcanic eruptions, wildfires, and other industrial and agricultural activities.

Which of the Following Is Not a Major Source of Outdoor