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  2. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    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.

  3. Doubly labeled water - Wikipedia

    en.wikipedia.org/wiki/Doubly_labeled_water

    The mixed water sample then contains both types of heavy atoms, in a far higher degree than normal water, and is now "doubly labeled." The free interchange of hydrogens between water molecules (via normal ionization) in liquid water ensures that the pools of oxygen and hydrogen in any sample of water (including the body's pool of water) will be ...

  4. Biogeochemical cycle - Wikipedia

    en.wikipedia.org/wiki/Biogeochemical_cycle

    A biogeochemical cycle, or more generally a cycle of matter, [1] is the movement and transformation of chemical elements and compounds between living organisms, the atmosphere, and the Earth's crust. Major biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or molecule is ...

  5. File:Water cycle.png - Wikipedia

    en.wikipedia.org/wiki/File:Water_cycle.png

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  6. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H +, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as a hydroxide ion (OH −) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7 in an ideal state.

  7. Water ride - Wikipedia

    en.wikipedia.org/wiki/Water_ride

    The Rapids Ride (Koskiseikkailu) at the Särkänniemi amusement park in Tampere, Finland, 2013 Children's bumper boats in Nouméa, New Caledonia, 2011 "Poseidon" water coaster at Europa-Park, Germany, 2003. Water rides are amusement rides that are set over water. For instance, a log flume travels through a channel of water to move along its course.

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