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Q:1 Why is the atmosphere essential for life? 

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The atmosphere is very essential for life in the following ways:

(1) It maintains the temperature of the Earth and prevents the heat from escaping during the night. 

(2) The atmosphere contains nitrogen, oxygen, and carbon dioxide which are required for various life processes.

(3) Oxygen in the atmosphere is required for burning, and combustion and is essential for respiration.

(4) The ozone layer in the stratosphere prevents UV rays from the sun from reaching the Earth's surface.

(5) It protects Earth from celestial objects like asteroids and meteors.

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HARSH KANKARIA

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