They began to form by a combination of volcanic activity and the deposit of marine sediments. It formed along northwest Africa about 530 million years ago. ... As the Appalachian Mountains eroded, sand and clay were deposited over Florida's limestone layer.
No, the answer is C. If it was A and the air cools, then why are deserts hot? The answer is C because as air rises it heats up and lose a its moisture through evaporation, leaving hot dry air for the deserts. This is called the rain shadow effect, where one side of the mountain is moist and cool and the other side is a desert.
