Question

explain the major factors influencing air pressure

Answer 1

the climate of that area

Answer 2

1. Temperature:

As the temperature increases, air expands because of which its density decreases which results in low pressure. On the other hand air shrinks due to low temperature because of which its density increases which creates high pressure.

2. Height from Sea Level:

Air pressure is created due to weight of air therefore sea level has highest air pressure. As we move upward from sea level leaving behind the heavy gases at lower layers of atmosphere, air pressure decreases because the upper air is light and its density is low.

3. Moisture in Air (Humidity):

Conversion of water from liquid state to gaseous state because of evaporation is known as atmospheric humidity.

4. Gravitation of Earth:

Atmosphere glues around the Earth due to its gravitation. The intensity of gravitational pull decreases as we get away from core of Earth.

5. Rotation of Earth:

Rotation of Earth produces centrifugal force which has more effect in Equatorial region while lesser effect on Polar regions.

content from:http://www.geographynotes.com/atmosphere/air-pressure/air-pressure-factors-distribution-atmosphere-e...