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Houston
(Encyclopedia)Houston, city (2020 pop. 2,304,580), seat of Harris co., SE Tex., a deepwater port on the Houston Ship Channel; inc. 1837. Harrisburg (now part of Hou...mummy
(Encyclopedia)mummy, dead human or animal body preserved by embalming or by unusual natural conditions. As a rule mummies are from ancient times. The word is of Arabic derivation and refers primarily to the burials...Papua, province, Indonesia
(Encyclopedia)Papua ĭrˈēän jīˈyə [key], province (2014 est pop. 3,486,000), 123,180 sq mi (319,036 sq km), Indonesia. Comprising most of the western half of New Guinea and a number of offshore islands, it is...climate
(Encyclopedia)climate, average condition of the atmosphere near the earth's surface over a long period of time, taking into account temperature, precipitation (see rain), humidity, wind, barometric pressure, and ot...Pleistocene epoch
(Encyclopedia)Pleistocene epoch plīˈstəsēn [key], 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table). According to a classification that considered its depos...mountain climbing
(Encyclopedia)mountain climbing, the practice of climbing to elevated points for sport, pleasure, or research. Also called mountaineering, it is practiced throughout the world. Many mountain climbing clubs have...prostitution
(Encyclopedia)prostitution, act of granting sexual access for payment. Although most commonly conducted by females for males, it may be performed by females or males for either females or males. Prostitution in A...copper, chemical element
(Encyclopedia)copper, metallic chemical element; symbol Cu [Lat. cuprum=copper]; at. no. 29; at. wt. 63.546; m.p. 1,083.4℃; b.p. 2,567℃; sp. gr. 8.96 at 20℃; valence +1 or +2. Copper and some of its alloys ha...Tonga
(Encyclopedia)Tonga tŏngˈgə [key], officially Kingdom of Tonga, island kingdom (2015 est. pop. 106,000), 270 sq mi (699 sq km), South Pacific, c.2000 mi (3,220 km) NE of Sydney, Australia. Tonga is the only surv...exploration
(Encyclopedia)exploration, travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade. See also space explorati...Browse by Subject
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