(Encyclopedia) species, in biology, a category of classification, the original and still the basic unit in the demarcation of plant and animal types. The species marks the boundary between…
(Encyclopedia) ZagrosZagroszăgˈrŏs [key], mountain system of W Iran, extending c.1,100 mi (1,770 km) from the Turkish-Armenian frontier SE to the Strait of Hormuz, forming the western and southern…
Source: The National Aeronautics and Space Administration (NASA) The diameter of our closest star, the Sun, is 1,392,000 kilometers. The Sun is thought to be 4.6 billion years old. The Sun is a…
(Encyclopedia) NicosiaNicosianĭkəsēˈə [key], Gr. Levkosia, Turkish Lefkoşa, city (1992 pop. 177,410), capital of Cyprus, on the Pedieos River in the central plain of the island. It is also the center…
(Encyclopedia) San Andreas fault, great fracture (see fault) of the earth's crust in California. It is the principal fault of an intricate network of faults extending more than 600 mi (965 km) from…
(Encyclopedia) San JuanSan Juansän hwän [key], river, c.110 mi (180 km) long, flowing from the southeast corner of Lake Nicaragua E to the Caribbean Sea, near the port of San Juan del Norte. The…
(Encyclopedia) Crittenden Compromise, in U.S. history, unsuccessful last-minute effort to avert the Civil War. It was proposed in Congress as a constitutional amendment in Dec., 1860, by Sen. John J…
(Encyclopedia) DanelawDanelawdānˈlôˌ [key], originally the body of law that prevailed in the part of England occupied by the Danes after the treaty of King Alfred with Guthrum in 886. It soon came to…
(Encyclopedia) fall line, boundary between an upland region and a coastal plain across which rivers from the upland region drop to the plain as falls or rapids. A fall line is formed in an area where…
