Answer:
C. A cycle of processes by which water circulates the earth's oceans, atmosphere, and land.
Step-by-step explanation:
The term water cycle (also called the hydrologic cycle or the hydrological cycle) refers to the way water moves on, above, and below the surface of the Earth.
As the sun heats up the surface of our planet, water evaporates from it, rises up into the atmosphere, cools, and turns into rain or snow in clouds. Then, in this form, it falls on the surface again. This cycle constantly repeats itself, which means that water moves all the time.
You can see an illustration of this phenomenon in the image attached below: