What Causes the Moist Air of Tropical Rainforests

Question

What causes the moist air of tropical rainforests?
A) warm air rising at the equator, cooling and condensing, and falling to Earth
B) warm air sinking, moving to the equator, and raining
C) cool air rising, evaporating, and forming cloud cover
D) cool air sinking, condensing, and falling as rain

Accepted Answer

The moist air in tropical rainforests is caused by warm air rising at the equator. As the warm air rises, it cools and condenses, forming clouds. These clouds release precipitation, which falls to the Earth as rain. This process is known as the "rain shadow effect" and is responsible for the abundant rainfall in tropical rainforests.