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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 Supreme Court of the United States has made several rulings regarding evolution in public education. In reaction to the Epperson case, creationists in Louisiana passed a law requiring that public schools should give "equal time" to "alternative theories" of origin. The Supreme Court ruled in 1987 in Edwards v.
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 ...
The rapid expansion of education past age 14 set the U.S. apart from Europe for much of the 20th century. [ 82] From 1910 to 1940, high schools grew in number and size, reaching out to a broader clientele. In 1910, for example, 9% of Americans had a high school diploma; in 1935, the rate was 40%. [ 190]
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.
t. e. In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from ...
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.
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.