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Q.

Is it true that as the air gets warmer, it expands?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
As the air gets warmer, it expands. Air is made up of different gases, and gases have a property that if it is heated, then they expand because the molecules of the gases move away from each other, and therefore the overall gas expands. The molecules are separate as they heat up and move more quickly. As a result, air expands when it is heated and contracts when cooled, like most other things. The air is less dense than the surrounding material because there is more space between the molecules, which causes the heated air to float higher.
 
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