Question

3. Warm air is lighter than cold air. Why?

Answer 1

hiii buddy

here is your answer

• this is because warm air doesn't contain much particle
• moreover warm air doesn't contain much moisture too.

Hope its helps you

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Answer 2

Answer:

The reason fr this is when air gets heated up it expands and becomes less dense than the air surrounding it also the distance between the molecules increases. ... So the less dense air floats in the much denser air just like ice floats on water as ice is less dense than water.