Atmosphere and its Importance


 
 
Concept Explanation
 

Atmosphere and its Importance

ATMOSPHERE: The Earth is surrounded by a layer of gas called the atmosphere. This thin blanket of air is an integral and important aspect of the planet. It provides us with the air we breathe and protects us from the harmful effects of sun’s rays. As we go up the layers of the atmosphere, fewer air molecules are above us. So, there will be less weight of air above us. Hence, atmospheric pressure always decreases as we move upward in the atmosphere.

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Sample Questions
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Question : 1

As we go up layers of the atmosphere, the pressure _________________-

Right Option : B
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Question : 2

_________________ is the thin layer of air that surrounds the earth.

Right Option : A
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Question : 3

The major constituent in atmosphere is ____________

Right Option : D
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