Why is warm air lighter than cold water?
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Answer:
I don't know sorry for the distraction
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Answer:
When a substance is heated it expands, so warm air is lighter than cold air.
Explanation:
Since, when a substance, be it solid, liquid or gas, is heated, it expands and when the molecules expand, they go apart from each other. As a result, the mass gets distributed over a large area and the air becomes lighter.
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