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hydrology
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Diagram of the water cycle showing processes like evaporation, condensation, precipitation, transpiration, infiltration, and groundwater flow between land, vegetation, surface water, and the ocean, with labeled arrows and color-coded soil moisture and groundwater zones.
Two illustrated divers are superimposed onto a photograph showing a lake underwater.
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water glass on white background. (drink; clear; clean water; liquid)
Water and its Varying Forms
Cave pool thermal spring in Grjotagja Cave, near Myvatn lake in Iceland. Groundwater. Lava cave
Groundwater Quiz
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Diagram of the water cycle showing processes like evaporation, condensation, precipitation, transpiration, infiltration, and groundwater flow between land, vegetation, surface water, and the ocean, with labeled arrows and color-coded soil moisture and groundwater zones.
hydrologic cycle This diagram shows how, in the hydrologic cycle, water is transferred between the land surface, the ocean, and the atmosphere.

hydrology

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History

hydrology, scientific discipline concerned with the waters of the Earth, including their occurrence, distribution, and circulation via the hydrologic cycle and interactions with living things. It also deals with the chemical and physical properties of water in all its phases. A brief treatment of hydrology follows. For full treatment, see hydrologic sciences. Hydrology has as its primary objective the study of the interrelationship between water and its environment. As hydrology is mainly concerned with water...

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