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  2. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    The water cycle is essential to life on Earth and plays a large role in the global climate system and ocean circulation. The warming of our planet is expected to be accompanied by changes in the water cycle for various reasons. [24] For example, a warmer atmosphere can contain more water vapor which has effects on evaporation and rainfall.

  3. Marine biogeochemical cycles - Wikipedia

    en.wikipedia.org/wiki/Marine_biogeochemical_cycles

    The deep 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. Some of the water makes it all the way to the lower mantle and may even reach the outer core.

  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. 37 Earth Day Activities for Kids - AOL

    www.aol.com/37-earth-day-activities-kids...

    One of the biggest ways to pay Earth Day (and the Earth, overall) the respect it deserves is to really consider where your food comes from and what it costs (think: carbon emissions, water and ...

  6. Surface runoff - Wikipedia

    en.wikipedia.org/wiki/Surface_runoff

    Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or human-made processes. [1] Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water.

  7. Runoff (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Runoff_(hydrology)

    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. However, the partitioning of the water into the major reservoirs of ice, fresh water, salt water and ...

  8. 25 Exciting Earth Day Activities for Kids - AOL

    www.aol.com/lifestyle/21-earth-day-activities...

    2. Fuel up for breakfast with a sustainable recipe. One of the biggest ways to pay Earth Day (and the Earth, overall) the respect it deserves is to really consider where your food comes from and ...

  9. Hydrology - Wikipedia

    en.wikipedia.org/wiki/Hydrology

    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 ...