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  2. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    Bartholomew of England held this view (1240 CE), as did Leonardo da Vinci (1500 CE) and Athanasius Kircher (1644 CE). Discovery of the correct theory The first published thinker to assert that rainfall alone was sufficient for the maintenance of rivers was Bernard Palissy (1580 CE), who is often credited as the discoverer of the modern theory ...

  3. Deep water cycle - Wikipedia

    en.wikipedia.org/wiki/Deep_water_cycle

    The deep water cycle, or geologic water cycle, involves exchange of water with the mantle, with water carried down by subducting oceanic plates and returning through volcanic activity, distinct from the water cycle process that occurs above and on the surface of Earth. [1]

  4. Claudia Sheinbaum - Wikipedia

    en.wikipedia.org/wiki/Claudia_Sheinbaum

    Claudia Sheinbaum Pardo [a] (born 24 June 1962) is a Mexican politician, scientist, and academic who has served as the 66th president of Mexico since 2024, the first woman to hold the office.

  5. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is an inorganic compound with the chemical formula H 2 O.It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance.It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent [20]).

  6. Hydrological model - Wikipedia

    en.wikipedia.org/wiki/Hydrological_model

    A hydrologic model is a simplification of a real-world system (e.g., surface water, soil water, wetland, groundwater, estuary) that aids in understanding, predicting, and managing water resources.

  7. Oxygen-18 - Wikipedia

    en.wikipedia.org/wiki/Oxygen-18

    In ice cores, mainly Arctic and Antarctic, the ratio of 18 O to 16 O (known as δ 18 O) can be used to determine the temperature of precipitation through time.Assuming that atmospheric circulation and elevation has not changed significantly over the poles, the temperature of ice formation can be calculated as equilibrium fractionation between phases of water that is known for different ...

  8. Seawater - Wikipedia

    en.wikipedia.org/wiki/Seawater

    Seawater, or sea water, is water from a sea or ocean.On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na +

  9. Aqua Claudia - Wikipedia

    en.wikipedia.org/wiki/Aqua_Claudia

    Route of the Aqua Claudia. Aqua Claudia ("the Claudian water") was an ancient Roman aqueduct that, like the Aqua Anio Novus, was begun by Emperor Caligula (37–41 AD) in 38 AD and finished by Emperor Claudius (41–54 AD) in 52 AD.