Which gases in the upper atmosphere shields the earth's surface from the sun's harmful ultraviolet rays?

Question

Quizplus · Accepted Answer

Ozone is a gas that is naturally present in the Earth's upper atmosphere, and it helps to shield the Earth's surface from the sun's harmful ultraviolet (UV) rays. Nitrogen and methane are not gases that provide this shielding effect, and chlorofluorocarbons (CFCs) are actually harmful to the ozone layer and contribute to its depletion.

Which Gases in the Upper Atmosphere Shields the Earth's Surface