Question

What casues air pressure?

1.a sudden change in the weather
2.the weight of the air in the atmosphere
3.human polluntion getting in the air
4.the heating air from the sun

Answer 1

it is option 2.

Step-by-step explanation:
Even though we can't see the air around us, it still has weight and presses against whatever it touches. This type of pressure formed is simply called air pressure. Air pressure is basically the force exerted by the air on any surface in contact with it.

Answer 2

2. the weight of the air in the atmosphere

Step-by-step explanation:

Air pressure is caused by the weight of the air in the atmosphere

The air around us has weight and thus it presses against anything it touches. This is termed as atmospheric pressure or Simply air pressure. It is the force that is exerted on a surface by the air above it as gravity pulls to the ground/earth.

This clearly explain the cause of air pressure as the weight of the air in the atmosphere.