- The column of atmosphere is divided into five different layers depending upon the temperature condition. They are: troposphere, stratosphere, mesosphere, ionosphere and exosphere.
- One important feature of the stratosphere is that it contains the ozone layer. The stratosphere is found above the tropopause and extends up to a height of 50 km.
- This layer absorbs ultra-violet radiation and shields life on the earth from intense, harmful form of energy.