The correct answer is cycle.
Water cycle refers to the cycle of procedures by which water circulates between the oceans of the Earth, land, and atmosphere, involving drainage in streams and rivers, precipitation as rain and snow, and return back to the atmosphere by transpiration and evaporation.
The water cycle illustrates that how water evaporates from the Earth's surface, elevates into the atmosphere, condenses and cools into snow or rain in clouds, and falls again to the surface in the form of precipitation.