In the stratosphere, what important gas helps protect Earth from radiation? Carbon dioxide Nitrogen Dxygen Ozone

## Step 1<br />The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. It is stratified in temperature, with warmer layers higher up and cooler layers farther down. This is in contrast to the troposphere near the Earth's surface, which is cooler higher up and warmer farther down.<br />## Step 2<br />The stratosphere contains the ozone layer. The ozone layer absorbs and scatters the solar ultraviolet radiation, which is harmful to life on Earth.<br />## Step 3<br />Given the options, the gas that helps protect Earth from radiation in the stratosphere is Ozone.