| Albedo The albedo of an object is the extent to which it diffusely reflects light from the sun. It is therefore a more specific form of the term reflectivity. Albedo
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| Alabama |Governor = Robert R. Riley (R) Alabama
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| Amphibian Amphibians (class Amphibia), such as frogs, toads, salamanders, newts, and gymnophiona, are cold-blooded animals that metamorphose from a juvenile, water-breathing form to an adult, air-breathing form. Typically, amphibians have four limbs. Amphibian
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| Alaska | HighestElev = 6,193.7 Alaska
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| Analysis of variance In statistics, analysis of variance (ANOVA) is a collection of statistical models, and their associated procedures, in which the observed variance is partitioned into components due to different explanatory variables. The initial techniques of the analysis of variance were developed by the statistician and geneticist R. Analysis_of_variance
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| Apollo 11 |crew_size = 3 Apollo_11
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| Afghanistan |demonym = Afghan Afghanistan
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| Asteroid Asteroids, sometimes called minor planets or planetoids, are bodies—primarily of the inner Solar System—that are smaller than planets but larger than meteoroids (commonly defined as being 10 meters across or less), with the exception of comets. The distinction between asteroids and comets is made on visual appearance when discovered: Comets show a perceptible coma (a fuzzy "atmosphere"), while asteroids do not. Asteroid
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| Argon Argon () is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table (noble gases). Argon
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| Geography of Antarctica |- Geography_of_Antarctica
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| Geography of Alabama ==Physical features== Geography_of_Alabama
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| Abalone Abalone (from Spanish Abulón) are medium-sized to very large edible sea snails, marine gastropod mollusks in the family Haliotidae and the genus Haliotis. Abalone
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| Anadyr River | mouth = Gulf of Anadyr Anadyr_River
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| Ammonia | Section2 = Ammonia
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| Asteroid Talk:Asteroid
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| Astoria, Oregon |blank1_name = GNIS feature ID Astoria,_Oregon
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| Aluminium Talk:Aluminium
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| Arkansas |HighestElev = 840 Arkansas
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| Arizona |HighestElev = 3,851 Arizona
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| Apollo 12 mass 28,838 kg Apollo_12
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| Apollo 14 |crew_members = 3 Apollo_14
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| Asbestos Asbestos is a group of minerals with long, thin fibrous crystals. The word "asbestos" (῾ἀσβεστος) is derived from a Greek adjective meaning inextinguishable. Asbestos
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| Austin, Texas The ATX, City of the Violet Crown Austin,_Texas
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| Ann Arbor, Michigan |blank1_name = GNIS feature ID Ann_Arbor,_Michigan
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| Albion, Michigan |blank1_name = GNIS feature ID Albion,_Michigan
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| Aberdeen, South Dakota {{Infobox Settlement Aberdeen,_South_Dakota
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| Astrobiology Astrobiology (from Greek , astron, "constellation, star"; , bios, "life"; and , -logia) is the interdisciplinary study of life in the Universe, combining aspects of astronomy, biology and geology.NASA - Astrobiology It is focused primarily on the study of the origin, distribution and evolution of life. Astrobiology
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| Alexandria, Indiana |blank1_name = GNIS feature ID Alexandria,_Indiana
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| Alexandria, Louisiana Alexandria is a city in and the [[pa Alexandria,_Louisiana
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| Andersonville, Georgia {{Infobox Settlement Andersonville,_Georgia
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| Atlanta, Georgia The A-T-L Atlanta,_Georgia
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| Acid rain Acid rain is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infastructure. Acid_rain
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| Beryllium Beryllium () is a chemical element with the symbol Be and atomic number 4. A bivalent element, beryllium is a steel grey, strong, light-weight yet brittle alkaline earth metal. Beryllium
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| Boron Boron () is a chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron
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| Bromine Bromine (, , meaning "stench (of he-goats)" Gemoll W, Vretska K: Griechisch-Deutsches Schul- und Handwörterbuch ("Greek-German dictionary"), 9th ed., published by öbvhpt, ISBN 3-209-00108-1), is a chemical element with the symbol Br and atomic number 35. Bromine
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| Bauxite Bauxite is the most important aluminium ore. It consists largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2. Bauxite
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| Boston, Massachusetts The Hub (of the Universe),1 The Cradle of Liberty, Title Town, The Cradle of Modern America, Athens of America, The Walking City Boston,_Massachusetts
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| Brown Bear | image = Grizzlybear55.jpg Brown_Bear
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| Battle Creek, Michigan |established_title = Settled Battle_Creek,_Michigan
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| Boone, North Carolina |blank1_name = GNIS feature ID Boone,_North_Carolina
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| Bobwhite Quail The Northern Bobwhite, Virginia Quail or (in its home range) Bobwhite Quail (Colinus virginianus) is a ground-dwelling bird native to North America and northern Central America and the Caribbean. It is a member of the group of species known as New World quails (Odontophoridae). Bobwhite_Quail
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| Bermuda Triangle The Bermuda Triangle, also known as the Devil's Triangle, is a region of the northwestern Atlantic Ocean in which a number of aircraft and surface vessels have disappeared or are alleged to have disappeared. Some people have claimed that these disappearances fall beyond the boundaries of human error or acts of nature. Bermuda_Triangle
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| Berkeley, California Berkeley is a city on the east shore of San Francisco Bay in Northern California, in the United States. Its neighbors to the south are the cities of Oakland and Emeryville. Berkeley,_California
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| Zebrafish The zebrafish or zebra danio, Danio rerio, a tropical freshwater fish belonging to the minnow family (Cyprinidae). It is a popular aquarium fish, frequently sold under the trade name zebra danio, and is also an important model organism in scientific research. Zebrafish
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| Carbon Carbon () is a chemical element with the symbol C and its atomic number is 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Carbon
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| Concrete Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures. The word concrete comes from the Latin word "concretus", which means "hardened" or "hard". Concrete
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| Concrete Talk:Concrete
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| Colorado Colorado
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| California |Capital = Sacramento California
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| Columbia River The Columbia River (known as Wimahl or Big River to the Chinook-speaking natives who live on its lowermost reaches) is the largest river in the Pacific Northwest region of North America. It is named after the Columbia Rediviva, the first ship from the western world known to have traveled up the river. Columbia_River
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