Question

Air expands on heating and ...... on cooling​

Answer 1

Answer:

contracts

Explanation:

air expands on heating and contracts on cooling

Answer 2

Answer:

Air expands on heating. It is because the particles of air on becoming warm, move away from each other and take up more space.

Air expands on cooling.It is because substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

Air molecules expand on heating and contract on cooling.

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