Answer: Blocks harmful UV rays transports and distributes heat cycles essential elements: C, O, and N
Explanation:
The atmosphere is the integral part of the earth this typically includes gases which are necessary for sustaining lives on earth. The earth atmosphere forms a protective blanket around the inner earth which prevents the entry of majority of UV rays directly coming from the sun, This way atmosphere plays an important role in protecting the living beings from carcinogenic UV rays. It distributes the heat coming from the sunlight also it reflect back the absorb heat energy to the space acquired from the sun so as to maintain the balance of heat on planet earth.
It essentially plays an important role in circulation of essential gaseous elements like carbon, oxygen and nitrogen as these are required by the plants to conduct photosynthesis, respiration and protein synthesis respectively. Majorly all other life forms on earth are dependent on plants for food requirements therefore this cycling is beneficial for sustaining their lives too.
