How does altituded affect air pressure?

Answer 1

Air has weight, and weight means pressure. The higher up you go, the less air left above to press down --and so, less pressure

Air Pressure decreases with the rise of altitude and increases when lowered. Example: You would not be able to breathe as well high in the air as you would standing on the ground.

At higher altitude, air pressure decreases. Eventually the air runs out entirely at about 200 miles altitude, at which point you are in outer space with zero air pressure.

Air pressure drops at higher altitudes. This makes water boil at a lower temperature, causing difficulties in cooking and makes it harder for people to get their breath.

This is also why commercial airplanes are pressurized inside.

Air pressure declines with altitude (becoming effectively zero at about 200 miles in altitiude). That is because air pressure is the result of the weight of the air, and the higher you go, the less air you have above you to press downward and cause air pressure.
As altitude increase air pressure decrease.

Air pressure is a result of the total weight of the all the air (or column of air) from above as well as the sideways pressure from the weight pressing down on the air around the current position. As the altitude increases, their is less air pressing down from above (and from above the surrounding area) so the air pressure decreases as the altitude increases.

Answer 2

Increasing altitude decreases air pressure. Same for pressure as you go down in the ocean...