In the stratosphere, temperature behavior is: Constant Decreasing Increasing Unpredictable

## Step 1<br />The stratosphere is the second major layer of Earth's atmosphere, situated above the troposphere and below the mesosphere. It is characterized by a temperature gradient that is different from the troposphere.<br /><br />## Step 2<br />In the troposphere, the temperature decreases with altitude. This is due to the fact that the troposphere is the layer closest to the Earth's surface, and the heat from the sun is absorbed by the Earth's surface and then radiated outwards.<br /><br />## Step 3<br />However, in the stratosphere, the temperature increases with altitude. This is due to the presence of the ozone layer, which absorbs harmful ultraviolet radiation from the sun. The absorption of this radiation by the ozone layer causes the temperature to increase.