Although there are different mechanisms involved, clouds generally form when:
A) Frost is formed.
B) Air is warmed.
C) Water vapor is added by evaporation.
D) Air is lifted
E) The greenhouse effect is at a maximum.

Question

Although there are different mechanisms involved, clouds generally form when:
A) Frost is formed.
B) Air is warmed.
C) Water vapor is added by evaporation.
D)  Air is lifted
E) The greenhouse effect is at a maximum.

Quizplus · Accepted Answer

Air is lifted causes clouds to form because as air rises, it cools and condenses into water droplets or ice crystals.

Although There Are Different Mechanisms Involved, Clouds Generally Form When