The stratosphere contains the ozone layer, which absorbs most of the Sun's harmful ultraviolet radiation.

Here's why this is important:

* Ozone Layer: The ozone layer is a region within the stratosphere with a high concentration of ozone gas (O3).

* Ultraviolet Radiation: The Sun emits ultraviolet (UV) radiation, which can be harmful to living organisms.

* Absorption: Ozone molecules absorb most of the incoming UV radiation, preventing it from reaching the Earth's surface.

Let me know if you'd like to know more about the stratosphere!