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Hydrologic Cycle

Also known as the water cycle, the hydrologic cycle is a process of circulation of the earth's water and its storage in reservoirs as a continuous flux, powered by solar energy. In some cases, the term hydrologic cycle implies a change of state of water. The water cycle involves considerable exchanges of energy between the atmosphere and the oceans, and significantly contributes to other processes like the alteration and breakdown of minerals and rocks, known as erosion, and the transportation of weathered particles as solids or ions in solution from land surface to the oceans.

Water exists on Earth in the three states of matter: solid (ice), liquid, and gas (water vapor). The processes by which water changes from one state to another are known as ...

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