Question

Briefly describe the effect of heat on air.

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Answer 1

Answer:

As the molecules heat and move faster, they are moving apart. So air, like most other 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.

Explanation:

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Answer 2

Answer:

Answer:The heat causes air to expand and occupies more space. It becomes lighter. That's why, warm air is lighter than the cold air.