what is atmosphere? write a short note on it
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The Atmosphere is a very thin layer of a sheet of gases. This ATMOSPHERE is very crucial for life to survive. It helps to keep all the harmful UV rays and others away. If these rays touch the surface it would be harmful to every living thing on earth. The atmosphere is composed mainly of Nitrogen and Oxygen.
Oxygen in this place is different from the oxygen we breathe. It has an odour too. This atmosphere formed at the time when earth was taking its shape. at that time when earth was cooling down some gases were released out. But these were not able to escape into space, the gravity held them over there. Then this became our atmosphere.
This is my own answer, hope it helps you.
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