primary concern
51Eutrophication — The eutrophication of the Potomac River is evident from its bright green water, caused by a dense bloom of cyanobacteria. Eutrophication (Greek: eutrophia healthy, adequate nutrition, development; German: Eutrophie) or more precisely… …
52Medical analysis of circumcision — Numerous medical studies have examined the effects of male circumcision with mixed opinions regarding the benefits and risks of the procedure. Opponents of circumcision say it is medically unnecessary, is unethical when performed on newborns, is… …
53Bolivia — Bolivian, adj., n. /beuh liv ee euh, boh /; Sp. /baw lee vyah/, n. 1. a republic in W South America. 7,669,868; 404,388 sq. mi. (1,047,370 sq. km). Caps.: La Paz and Sucre. 2. (often l.c.) a twill fabric made of cut pile with lines either in the… …
54Politics of the United States — United States This article is part of the series: Politics and government of the United States …
55Sociology — For the journal, see Sociology (journal). Sociology …
56Conservatism in the United States — For related and other uses, see Conservatism (disambiguation). Part of a series on Conservatism …
57Spider bite — redirects here. For The Spider Bite urban legend, see The Spider Bite. Spider bite Classification and external resources Chelicerae of a black wishbone (nemesiid) spider, a mygalomorph …
58Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… …
59History of the United States (1980–1991) — The history of the United States (1980 1991) includes the last year of the Jimmy Carter presidency, eight years of the Ronald Reagan administration, and the first two years of the George H. W. Bush presidency, up to the collapse of the Soviet… …
60Songun — Chosŏn gŭl 선군정치 Hancha 先軍 …
