Which of the following best describes what happens to water molecules after they have condensed to form clouds?
they will combine to form runoff and flow into rivers, lakes, and oceans.
they will undergo evaporation and change to a gas.
they will undergo transpiration and become water vapor.
they will fall to earth as precipitation in the form of rain, sleet, or snow.

The correct answer is D. They will fall to Earth as precipitation in the form of rain sleet or snow.

Explanation

The rain is part of the hydrological cycle, this cycle begins with the evaporation of the water that passes from the liquid to the gaseous state, a process in which the water molecules lose density which causes them to rise to the sky and form clouds. Subsequently, after the accumulation of several water molecules in the clouds they condense, that is, they pass from gaseous to a liquid state, also, due to the increase in density and weight they rush towards the earth. So, the correct answer is D. They will fall to Earth as precipitation in the form of rain sleet or snow.