Which layer of the atmosphere contains the ozone layer that protects Earth from UV radiation?
A
Stratosphere
B
Thermosphere
C
Troposphere
D
Mesosphere
Correct Answer: Option A — Stratosphere
Explanation:
The stratosphere contains the ozone layer, located roughly 15-35 km above Earth's surface, which absorbs and filters out most of the sun's harmful ultraviolet radiation, protecting living organisms below.