Question

When hot air rises up from a region, the region becomes:

• A. High pressure region.
• B. Low pressure region.
• C. Independent of temperature.
• D. Independent of pressure.

Answer 1

The correct option is B

Low pressure region.

As hot air is lighter it rises up, so the number of air particles in the region decreases. As the number of air particles decreases the pressure also decreases. Hence, when hot air from a place rises, a low pressure region is created below.