Question

Explain the difference in air pressure experienced at the North Pole and Equator.

Answer 1

The north pole is at a higher altitude than the equator. Also, the air around the north pole is cool and dense, which results in higher air pressure.
At the equator, the altitude is lower and also because of the direct heating of sun rays on the surface, the temperature is much higher than at the poles. This makes the air near the surface hot and lighter and hence it rises up which results in lower air pressure.