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Quizlet is a multi-national American company that provides tools for studying and learning. [1] Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [ 2 ] and released to the public in January 2007. [ 3 ]
The mass of the oceans is approximately 1.35 × 10 18 metric tons or about 1/4400 of Earth's total mass. The oceans cover an area of 361.8 million km 2 (139.7 million sq mi) with a mean depth of 3,682 m (12,080 ft), resulting in an estimated volume of 1.332 billion km 3 (320 million cu mi).
The National Science Bowl (NSB) is a high school and middle school science knowledge competition, using a quiz bowl format, held in the United States. A buzzer system similar to those seen on popular television game shows is used to signal an answer.
[1] [15] When there are more than four players on a team, the team has to substitute its players for different games. Each player usually has an electronic buzzer to signal in ("buzz") at any time during the question to give an answer. [13] In most forms of quiz bowl, there are two types of questions: toss-ups and bonuses. [1]
Witnesses to a deadly plane crash in South Korea said they observed flames in the engine of the aircraft, heard explosions and noticed birds colliding with the plane.
Excessive fat around organs in midlife could contribute to Alzheimer’s risk due through neuroinflammation, the results of three small studies have suggested.
Forecasters warn of difficult travel, whiteout conditions. Highway traffic cameras showed snowy conditions over the highway in Ohio, Pennsylvania and New York over the weekend.
A floodplain or flood plain or bottomlands [1] is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge. [2] The soils usually consist of clays, silts, sands, and gravels deposited during floods. [3]