Question

3. What happens to air when it is heated?​

Answer 1

Answer:

air is lighter than cold air, and so when air is heated it rises. Colder air then rushes in at ground level to take its place. On a small scale, this effect can be seen when the Sun heats up a field and the air above it rises in a thermal; you can often see birds like eagles soaring on these air currents.

Answer 2

Answer:

so air like most other substances expand when heated and contract when cooled because there is more space between the molecule the air is lense dense in the sorrounding