Question

if we go to higher altitude the earth's atmospheric pressure will decrease,increase,or will remain the same?​

Answer 1

Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.

Answer 2

yes it is decrease because in high altitude there is lease oxygan