As altitude increases, what happens to air pressure?
It fluctuates.
It increases.
It decreases.
It stays the same.
As altitude increases, air pressure decreases. This is because air density decreases with height; there are fewer air molecules in a given volume as you move up in altitude. At lower altitudes, the weight of the air above exerts more pressure on the layers below, resulting in higher atmospheric pressure. Conversely, at higher altitudes, there is less air above to exert pressure, which leads to a decrease in air pressure.
Snap a photo of your homework and get a step-by-step answer in seconds. You can ask follow-up questions until it makes sense.
Solve my question free Chemistry help Find a chemistry tutor© 2026 SnapAndSolve