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storm
(Encyclopedia)storm, disturbance of the ordinary conditions of the atmosphere attended by wind, rain, snow, sleet, hail, or thunder and lightning. Types of storms include the extratropical cyclone, the common, larg...Portsmouth, Treaty of
(Encyclopedia)Portsmouth, Treaty of, 1905, treaty ending the Russo-Japanese War. It was signed at the Portsmouth Naval Base, New Hampshire, on Sept. 5, 1905. Negotiations leading up to the treaty began in the sprin...estuary
(Encyclopedia)estuary ĕsˈcho͝oĕrˌē [key], partially enclosed coastal body of water, having an open connection with the ocean, where freshwater from inland is mixed with saltwater from the sea. One type of est...Mackenzie
(Encyclopedia)Mackenzie, river, c.1,120 mi (1,800 km) long, issuing from Great Slave Lake, Northwest Territories, Canada, and flowing generally NW to the Arctic Ocean through a great delta. Between Great Slave Lake...Luxemburg, Rosa
(Encyclopedia)Luxemburg, Rosa rōˈzä lo͝okˈsəmbo͝ork [key], 1871–1919, German revolutionary, b. Russian Poland. Her revolutionary activities forced her to flee to Switzerland in 1889, where she became a Mar...Five Civilized Tribes
(Encyclopedia)Five Civilized Tribes, inclusive term used since mid-19th cent. for the Cherokee, Chickasaw, Choctaw, Creek, and Seminole tribes of E Oklahoma. By 1850 some 60,000 members of these tribes were settled...Huang He
(Encyclopedia)Huang He, Hwang Ho both: hwängˈ ho͝oˈ [key], or Yellow River, great river of N China, c.3,000 mi (4,830 km) long, rising in the twin lakes Gyaring and Ngoring in the Kunlun Mts., NW Qinghai prov....Northwest Passage
(Encyclopedia)Northwest Passage, water routes through the Arctic Archipelago, N Canada, and along the northern coast of Alaska between the Pacific and Atlantic oceans. Even though the explorers of the 16th cent. de...ocean
(Encyclopedia)ocean, interconnected mass of saltwater covering 70.78% of the surface of the earth, often called the world ocean. It is subdivided into four (or five) major units that are separated from each other i...radon
(Encyclopedia)radon rāˈdŏn [key], gaseous radioactive chemical element; symbol Rn; at. no. 86; mass no. of most stable isotope 222; m.p. about −71℃; b.p. −61.8℃; density 9.73 grams per liter at STP; vale...Browse by Subject
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