water cycle
The water cycle is the continuous movement of water on, above, and below the Earth's surface, driven by the sun's energy. Key biological and physical processes include evaporation (liquid to vapor), condensation (vapor to clouds), and precipitation (rain, snow, etc.). Other vital processes are transpiration from plants, runoff and infiltration into the ground, and sublimation (ice to vapor). This cycle is essential for life, constantly recycling water between the atmosphere, land, and oceans.
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