Question

Q.3. What is the result when the air is heated?

a. Heavier

b. Lighter

c. Colder

d. Warmer​

Answer 1

Answer:

What happens when air is heated or cooled? ... 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. This is the concept used in the hot air balloons.

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Answer 2

Answer:

Explanation:

Anything that is heated /air is heated the result will be lighter always.

This point is very important that u should keep it in your mind.

The air is hotter because when the air is lighter it moves up and becomes hot..

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