As altitude increases, what happens to the pressure of the air?

A.
The air pressure increases at first then it decreases.

B.
The air pressure stays the same.

C.
The air pressure increases.

D.
The air pressure decreases.

Question

As altitude increases, what happens to the pressure of the air?
 

  
 
 
 A.   
    The air pressure increases at first then it decreases.
   
  
 
 
 B.   
    The air pressure stays the same.
   
  
 
 
 C.   
    The air pressure increases.
   
  
 
 
 D.   
    The air pressure decreases.

abhisar · Answer

It decreases

abhisar · Answer

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.