Which condition is likely to lead to rain?
A) Warm air makes contact with cool surfaces.
B) Cool, moist air falls.
C) Warm, moist air rises.
D) Moist air sinks as it passes over the leeward side of a mountain.

Question

Quizplus · Accepted Answer

Warm, moist air rising leads to the formation of clouds and ultimately precipitation, which can result in rain. 
Therefore, option C is the correct choice.

Which Condition Is Likely to Lead to Rain