Which of the following human activities would be expected to be the biggest contributor to air pollution? a. driving b. restaurant garbage c. aerosol cans d. nuclear weapons

A. driving. A single instance of a nuclear weapon would cause more pollution than a single instance of driving, but while millions of cars drive everyday, nuclear weapons are very rarely detonated. All the cars in the world contribute the most to pollution, especially because some countries still don't regulate the pollutants in exhaust.

Gases enter the atmosphere and trap the sun's heat warning the earth.