Question

Does air pressure increase or decrease with an increase in altitude?

Answer 1

increase

Step-by-step explanation:

think of climbing a mountain. the higher you go the harder it is to breathe. its because air pressure is increasing

Answer 2

decrease.

Step-by-step explanation:

The air pressure is given by

P = h x d x g

where, h is the height of air column above the surface and g be the acceleration due to gravity and d be the density of air.

As we go up, the height of air column decreases, density of air decreases and acceleration due to gravity also decreases, so the value of pressure decreases at altitudes.