Answer:Ozone layer
Explanation:
In the stratosphere, we find the ozone layer that protects life on Earth from ultraviolet radiations.
Most part of Ultraviolet radiaton is absorved by the earth's ozone layer. All of ultraviolet UVC is absorbed and most of UVB.
Almost all of the ultraviolet radiation received on Earth is UVA. UVA and UVB radiation can both affect health.