clawsoncaroline3 clawsoncaroline3 20-11-2020 Physics contestada Why is there less air pressure at higher altitudes? Air at higher altitudes doesn't have as much air weighing down on it from above. Air at higher altitudes is cooler and less turbulent. The molecules in the air lose mass and are less effected by gravity, significantly lowering their weight The warmer, lighter air rises bringing cooler heaver air to low altitudes.