The largest source of air pollutants in the United States come from ____.
A) power plants
B) transportation
C) factories
D) wood-burning stoves

Question

Quizplus · Accepted Answer

According to the Environmental Protection Agency (EPA), transportation is the largest source of air pollution in the United States, accounting for more than half of the nitrogen oxides and carbon monoxide emissions in the country. Power plants and factories also contribute a significant amount, but transportation is the biggest culprit. Wood-burning stoves may contribute to localized air pollution, but they are not a major source on a national level.

The Largest Source of Air Pollutants in the United States