Question

why does equatorial region always has low pressure whereas poles have high pressure ??​

Answer 1

Answer:

because of its location in the earth

Answer 2

Answer:

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. 

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.