Question

multiple - choice question
why does rain start to fall
the clouds start to collide
the water becomes to heavy and falls back to earth
rewatch

Explanation:

When water vapor in the atmosphere condenses into droplets in clouds, these droplets combine. As they grow larger and heavier, they can no longer be supported by the updrafts in the cloud. Eventually, the water becomes too heavy and falls back to Earth as rain. Clouds colliding is not the direct cause of rain starting to fall.

Answer:

the water becomes too heavy and falls back to Earth