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  2. Ecosystem service - Wikipedia

    en.wikipedia.org/wiki/Ecosystem_service

    Ecosystem services are the various benefits that humans derive from healthy ecosystems. These ecosystems, when functioning well, offer such things as provision of food, natural pollination of crops, clean air and water, decomposition of wastes, or flood control. Ecosystem services are grouped into four broad categories of services.

  3. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The history of water supply and sanitation is one of a logistical challenge to provide clean water and sanitation systems since the dawn of civilization. Where water resources, infrastructure or sanitation systems were insufficient, diseases spread and people fell sick or died prematurely. Astronaut Jack Lousma taking a shower in space, 1974.

  4. List of countries by access to clean water - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Share of the population without access to an improved water source, 2020. Global access to clean water is a significant global challenge that affects the health, well-being, and development of people worldwide. While progress has been made in recent years, millions of people still lack access to safe and clean drinking water sources.

  5. Detroit Water and Sewerage Department - Wikipedia

    en.wikipedia.org/wiki/Detroit_Water_and_Sewerage...

    The Detroit Water and Sewerage Department is a sprawling network covering 1,079 square-miles, servicing more than 40 percent of the U.S. state of Michigan's population, and employing nearly 2,000 people. The DWSD is one of the most extensive and largest water and sewage systems in the United States.

  6. Self-supply of water and sanitation - Wikipedia

    en.wikipedia.org/wiki/Self-supply_of_water_and...

    Self-supply of water and sanitation (also called household-led water supply or individual supply) refers to an approach of incremental improvements to water and sanitation services, which are mainly financed by the user. [1] [2] People around the world have been using this approach over centuries to incrementally upgrade their water and ...

  7. Holy water - Wikipedia

    en.wikipedia.org/wiki/Holy_water

    Holy water is water that has been blessed by a member of the clergy or a religious figure, or derived from a well or spring considered holy. The use for cleansing prior to a baptism and spiritual cleansing is common in several religions, from Christianity to Sikhism. The use of holy water as a sacramental for protection against evil is common ...

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