On July 2, 1982, truck driver Larry Walters decided to attach 45 helium-filled weather bal...

On July 2, 1982, truck driver Larry Walters decided to attach 45 helium-filled weather balloons to a lawn chair and go for a ride. Lawn Chair Larry rose to an altitude of nearly 5 kilometers (16,400 feet). The high elevations and lack of oxygen made him dizzy, so he decided it was time to deploy his principal altitude control device, a pellet gun. He shot out several balloons and descended back to Earth. Which process was most significant in Lawn Chair Larry’s balloon ride? Explain your reasoning.

a) Density lifting

b) Orographic lifting

c) Convergence lifting

d) Frontal lifting

In the following landscape, how would the amount of rainfall change at location X if the mountain eroded down to the dashed line?

a) Rainfall would increase.

b) Rainfall would decrease.

c) Rainfall would stay the same.