Question

Of the places listed, where would you expect to find the lowest air pressure? A. Desert B. Mountaintop C. Sea level D. Beach

Answer 1

is Mountaintop because more higher less air 

Answer 2

The higher into the atmosphere one goes, the lighter the air pressure. This is because the "column of air" above that area is shorter, as you are nearer to outer space. This means that the lowest pressure would most likely be found on a mountaintop, compared to the other options. This is Choice B.