How does the atmosphere act as a blanket?


Anitha Dunga : Subject Matter Expert at Edumarz

Answer : The earth consists of land, water, and air. The outer crust of the earth is called lithosphere, Water which covers around 75% of the earth’s surface is called hydrosphere, and the gasses that cover the whole earth as a protective blanket is called atmosphere. Atmosphere is a thin layer that surrounds the earth. Atmosphere consists of a number of gasses like nitrogen, oxygen, carbon dioxide, and water vapour. Majority of the earth atmosphere is consist of nitrogen which is of nearly 70%, and second major component is oxygen consist 30% volume in atmosphere.

 Biosphere is the Life supporting zone of the earth. This biosphere consists of all three that is lithosphere, hydrosphere, and atmosphere.

Atmosphere act as a blanket and protect earth from:

Atmosphere balances the average temperature of the earth during the whole day.

Atmosphere balances the temperature of the earth for the whole year to maintain the average temperature.

Atmosphere makes the temperature of the earth constant during day time and night time.

Atmosphere prevents the sudden increase or decrease of temperature on earth.

Atmosphere helps in preventing the escape of heat from the surface of the earth into the outer surface of the earth during night time. This helps in the greenhouse effect.

Also the atmosphere helps in protecting the earth by preventing the entry of  harmful uv radiations from the sun into the earth surface.


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