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

"Our eath is surrounded by a huge blanket of air. All living beings on this earth depend on the atmosphere for the survival . It provides us the air we breathe and protects us from the harmful effects of the sun 's rays".

Which of the following is discussed in the above given passage?

Right Option : B
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Question : 2

The science dealing with physics of the atmosphere is______ .

Right Option : D
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Question : 3

Which of the layers of atmosphere reflects radio waves and enables wireless communication ?

Right Option : C
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