Question

which of these is likely to happen in the absence of the stratosphere?
○ we may have to bear the impact of a meteorite
○ we may not experience storms, winds, and clouds
○ mixing of air due to convection currents may stop.
○ increased exposure to radiation may cause skin ailments.

Explanation:

The stratosphere contains the ozone layer which absorbs harmful ultraviolet (UV) radiation from the sun. Without the stratosphere (and its ozone layer), there would be increased exposure to UV radiation, which can cause skin ailments. The other options: meteorite impacts are related to the mesosphere/atmospheric layers' ability to burn meteoroids (not stratosphere), storms/winds/clouds are related to the troposphere, and convection currents mixing air is more related to troposphere dynamics. So the correct option is about increased radiation causing skin ailments.

Answer:

D. Increased exposure to radiation may cause skin ailments.