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Literacy in the United States was categorized by the National Center for Education Statistics into different literacy levels, with 92% of American adults having at least "Level 1" literacy in 2014. [ 1] Nationally, over 20% of adult Americans have a literacy proficiency at or below Level 1. Adults in this range have difficulty using or ...
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 ...
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.
Sea levels have been comparatively stable over the past 6,500 years, ending with a 0.50 m sea level rise over the past 1,500 years. For example, about 10,200 years ago the last land bridge between mainland Europe and Great Britain was submerged, leaving behind a salt marsh. By 8000 years ago the marshes were drowned by the sea, leaving no trace ...
Rainwater harvesting. Basic configuration of domestic rainwater harvesting system in Uganda. [ 1] Rainwater harvesting ( RWH) is the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit ( well, shaft, or borehole ), aquifer, or a reservoir ...
The California Water Wars were a series of political conflicts between the city of Los Angeles and farmers and ranchers in the Owens Valley of Eastern California over water rights . As Los Angeles expanded during the late 19th century, it began outgrowing its water supply. Fred Eaton, mayor of Los Angeles, promoted a plan to take water from ...
t. e. The history of higher education in the United States begins in 1636 and continues to the present time. American higher education is known throughout the world for its dramatic expansion. It was also heavily influenced by British models in the colonial era, and German models in the 19th century.
In the United States, education is provided in public and private schools and by individuals through homeschooling. State governments set overall educational standards, often mandate standardized tests for K–12 public school systems and supervise, usually through a board of regents, state colleges, and universities.