What happens to air when it reaches the highest point of a mountain?

Answer 1

While on the earths surface where there's overheating air tends to expand due to high temperature,becomes lighter and therefore rises because the pressure on each molecule is low.But as it ascends the temperature drops at a rate of 6.5 degrees celsius per km.This is reffered to as the "Lapse rate". At the "Peak" or highest point of a mountain,the air has lost much heat because the higher it goes the cooller it becomes.The air becomes cold,dense,and heavier with a high pressure.In casses like this the air may condense to form rainfall and if it condenses below 0 degree it forms snow.

Answer 2

it gets colder as it goes up!!