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The ocean plays a key role in the water cycle as it is the source of 86% of global evaporation. [2] The water cycle involves the exchange of energy, which leads to temperature changes. When water evaporates, it takes up energy from its surroundings and cools the environment. When it condenses, it releases energy and warms the environment.
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The diagram also shows how human water use impacts where water is stored and how it moves. [1] The water cycle (or hydrologic cycle or hydrological cycle) is a biogeochemical cycle that involves the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time.
Rain falling over a drainage basin in Scotland.Understanding the cycling of water into, through, and out of catchments is a key element of hydrology. Hydrology (from Ancient Greek ὕδωρ (húdōr) 'water' and -λογία () 'study of') is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and ...
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The water balance equation relates the change in water stored within the basin (S) to its input and outputs: Δ S = P − E T − Q − D {\displaystyle \Delta S=P-ET-Q-D\,\!} In the equation, the change in water stored within the basin ( ΔS ) is related to precipitation ( P ) (water going into the basin), and evapotranspiration ( ET ...
New research has shed light on how Stonehenge may have served to unify Britain’s early farmers as newcomers from Europe began to arrive thousands of years ago.
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