The growth of a cloud droplet into a rain drop large enough to fall to Earth in a WARM cloud is accomplished primarily through:
A) condensation of water vapor.
B) supercooling of water.
C) collision and coalescence.
D) hygroscopic action.
E) evaporation of water in the cloud.

Question

Quizplus · Accepted Answer

In warm clouds, water droplets generally do not freeze or freeze very slowly. Therefore, the growth of cloud droplets into raindrops is primarily achieved through collision and coalescence. As cloud droplets collide, they stick together and form larger drops. This process continues until the drops become too heavy to be suspended in the air and they fall to the ground as precipitation. The other options listed are not primary mechanisms for raindrop growth in warm clouds.

The Growth of a Cloud Droplet into a Rain Drop