Question

What is the Cause of atmospheric pressure?​

Answer 1

Answer:

Explanation:

At sea level, standard air pressure in millibars is 1013.2. ... This change in pressure is caused by changes in air density, and air density is related to temperature. Warm air is less dense than cooler air because the gas molecules in warm air have a greater velocity and are farther apart than in cooler air.

Answer 2

Answer:

Atmospheric pressure is due to the weight of air present in the atmosphere above us. Atmospheric pressure also acts in all directions. On the surface of earth, the atmospheric pressure is maximum at the sea level. This is because the column of air above us is tallest at the sea level .