Question

Hot air is dense and heavy and cold air is lighter and expands

Answer 1

Answer:

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Explanation:

Hot air rises because when you heat air (or any other gas for that matter), it expands. When the air expands, it becomes less dense than the air around it. The less dense hot air then floats in the more dense cold air much like wood floats on water because wood is less dense than water.

Answer 2

Answer:

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