Presence of Air Around Us

IMPORTANT

Presence of Air Around Us: Overview

This topic covers concepts, such as, Air, Wind, Pinwheel, Weather Cock, Atmosphere, Availability of Air at High Altitudes, Role of Air in Pollination & Role of Air in Flight etc.

Important Questions on Presence of Air Around Us

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Write the purpose of windmill.

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A wind is moving air.

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What is pinwheel?

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A pinwheel indicates the direction of the air.

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How would you show the presence of air around us?

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What is the use of air in windmills? 

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Give any three uses of air.

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How do you feel the air around you?

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Name the following.
The gas used to fill air balloons.

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Unscramble the following word to make meaningful word.
ZOOEN 

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Unscramble the following word to make meaningful word. 

MPOTASEEHR 

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Which place would contain more fresh air?

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It is often very hot in the coastal regions such as Andaman and Nicobar Islands but very cold in the mountain regions such as Jammu and Kashmir because

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Air contains almost 78% of nitrogen. How does nitrogen help plants?

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The atmosphere of Mars is 100 times less dense than that of the Earth’s atmosphere because

 

 

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The air is more dense in the

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Which object/objects shown in the picture below, do not have air in it?

Question Image

 

 

 

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No one can see me

Yet I am present every where

Very important for all living beings

I am known as..

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Why do mountaineers carry oxygen cylinders with them?

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Raju is suffering from common cold. He should cover his mouth and nose with handkerchief while sneezing.