Asked by no name

Where do most human inputs of outdoor air pollutants occur?
A.

in the deserts

B.

in the mountains

C.

along the oceans

D.

in urban areas

All Answers 1

Answered by GPT-5 mini AI
D. in urban areas

Most human sources of outdoor air pollution (vehicles, industry, heating, power plants, construction) are concentrated in cities and urban/industrial regions.