The water cycle, also known as the hydro logic cycle or the H₂O cycle, describes the continuous movement of water on, above and below the surface of the Earth. 

 The CycleEdit

The mass water on Earth remains fairly constant over time but the partitioning of the water into the major reservoirs of ice, fresh water, saline water and atmospheric water is variable depending on a wide range of climatic variables. The water moves from one reservoir to another, such as from river to ocean, or from the ocean to the atmosphere, by the physical processes of evaporation, condensation, precipitation, infiltration, runoff, and subsurface flow. In so doing, the water goes through different phases: liquid, solid ice, and gas vapor

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