Question

Why does hot air rises upward?
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Answer 1

Answer:

When we heat air, the molecules jiggle and zip around faster, which causes them to spread out. When a mass of air takes up more space, it has a lower density. When you have a lower density fluid immersed in a higher density fluid, the lower density fluid rises and the higher density fluid falls.

Simple: hot air is light and cold wind is heavy so hot air rises up

Answer 2

hot air rises upward because the molecules jiggle and zip around faster, which causes them to spread out.

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