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  2. Water conservation - Wikipedia

    en.wikipedia.org/wiki/Water_conservation

    Water conservation aims to sustainably manage the natural resource of fresh water, protect the hydrosphere, and meet current and future human demand. Water conservation makes it possible to avoid water scarcity. It covers all the policies, strategies and activities to reach these aims. Population, household size and growth and affluence all ...

  3. This Is Water - Wikipedia

    en.wikipedia.org/wiki/This_Is_Water

    978-0-316-06822-2. This Is Water: Some Thoughts, Delivered on a Significant Occasion, about Living a Compassionate Life is an essay by David Foster Wallace. The text originates from a commencement speech Wallace gave at Kenyon College on May 21, 2005. The essay was published in The Best American Nonrequired Reading 2006 and in 2009 its format ...

  4. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    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 ...

  5. Environmental education - Wikipedia

    en.wikipedia.org/wiki/Environmental_education

    Environmental education (EE) refers to organized efforts to teach how natural environments function, and particularly, how human beings can manage behavior and ecosystems to live sustainably. It is a multi-disciplinary field integrating disciplines such as biology, chemistry, physics, ecology, earth science, atmospheric science, mathematics ...

  6. Marine ecosystem - Wikipedia

    en.wikipedia.org/wiki/Marine_ecosystem

    Marine ecosystems are the largest of Earth 's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply [1][2] and 90% of habitable ...

  7. Water scarcity - Wikipedia

    en.wikipedia.org/wiki/Water_scarcity

    Water stress is the ratio of water use relative to water availability and is therefore a demand-driven scarcity. [1] Water scarcity (closely related to water stress or water crisis) is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical.

  8. Marine conservation - Wikipedia

    en.wikipedia.org/wiki/Marine_conservation

    Marine life. Marine conservation, also known as ocean conservation, is the protection and preservation of ecosystems in oceans and seas through planned management in order to prevent the over-exploitation of these marine resources. Marine conservation is informed by the study of marine plants and animal resources and ecosystem functions and is ...

  9. World Water Day - Wikipedia

    en.wikipedia.org/wiki/World_Water_Day

    World Water Day is an annual United Nations (UN) observance day held on the 22nd of March that highlights the importance of fresh water. The day is used to advocate for the sustainable management of freshwater resources. [1] The theme of each year focuses on topics relevant to clean water, sanitation and hygiene (WASH), which is in line with ...

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