City Pedia Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Water storage - Wikipedia

    en.wikipedia.org/wiki/Water_storage

    Water storage. Water storage is a broad term referring to storage of both potable water for consumption, and non potable water for use in agriculture. In both developing countries and some developed countries found in tropical climates, there is a need to store potable drinking water during the dry season. In agriculture water storage, water is ...

  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. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and industry, although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [ 1] Extensive industrialization and rapid urban growth ...

  5. Ogallala Aquifer - Wikipedia

    en.wikipedia.org/wiki/Ogallala_Aquifer

    The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the United States. As one of the world's largest aquifers, it underlies an area of approximately 174,000 sq mi (450,000 km 2) in portions of eight states (South Dakota, Nebraska, Wyoming, Colorado, Kansas, Oklahoma, New Mexico, and Texas). [1]

  6. Hoover Dam - Wikipedia

    en.wikipedia.org/wiki/Hoover_Dam

    Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. Constructed between 1931 and 1936, during the Great Depression, it was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort ...

  7. List of disasters in the United States by death toll - Wikipedia

    en.wikipedia.org/wiki/List_of_disasters_in_the...

    This list of United States disasters by death toll includes disasters that occurred either in the United States, at diplomatic missions of the United States, or incidents outside of the United States in which a number of U.S. citizens were killed. Domestic deaths due to war in America are included except the American Civil War.

  8. 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 ...

  9. List of recessions in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_recessions_in_the...

    This recession was one of the main causes of the American Civil War, which would begin in 1861 and end in 1865. This is the earliest recession to which the NBER assigns specific months (rather than years) for the peak and trough. [ 6][ 8][ 21] 1860–1861 recession. October 1860 – June 1861. 8 months.