____ naturally occurs in higher levels of atmosphere (stratosphere), protects living matter from ultraviolet electromagnetic radiation, and is destroyed by pollutants, such as Chlorofluorocarbons.
The ozone layer is a region of high ozone concentration in the stratosphere, 15 to 35 kilometres above Earth's surface. The ozone layer acts as an invisible shield and protects us from harmful ultraviolet (UV) radiation from the sun.
