Columbia Encyclopedia

(Encyclopedia) vitamin, group of organic substances that are required in the diet of humans and animals for normal growth, maintenance of life, and normal reproduction. Vitamins act as catalysts; very often either t...

(Encyclopedia)  CE5 Nebraska nəbrăsˈkə [key], Great Plains state of the central United States. It is bordered by Iowa and Missouri, across the Missouri River (E), Kansas (S), Colorado (SW), Wyoming (NW), and S...

(Encyclopedia)  CE5 Oklahoma ōkləhōˈmə [key], state in SW United States. It is bordered by Missouri and Arkansas (E); Texas, partially across the Red River (S, W); New Mexico, across the narrow edge of the Ok...

(Encyclopedia)  CE5 Montana mŏntănˈə [key], Rocky Mt. state in the NW United States. It is bounded by North Dakota and South Dakota (E), Wyoming (S), Idaho (W), and the Canadian provinces of British Columbia, ...

(Encyclopedia)  CE5 Cameroon kămˌəro͞onˈ [key], Fr. Cameroun, officially Republic of Cameroon, republ...

(Encyclopedia)  CE5 Burkina Faso burkēˈnə fäˈsō [key], republic (2020 est. pop. 20,900,000), 105,869 sq mi (274,200 sq ...

(Encyclopedia) Roosevelt, Franklin Delano rōˈzəvĕlt [key], 1882–1945, 32d President of the United States (1933–45), b. Hyde Park, N.Y. Apart from extending diplomatic recognition to the USSR (1933), th...

(Encyclopedia)  National Parks and Monuments 1 National Parks and Monuments National Monuments National and International Historic Sites and Historical Parks National Memorials National Battlef...

(Encyclopedia)  CE5 New Mexico, state in the SW United States. At its northwestern corner are the so-called Four Corners, where Colorado, New Mexico, Arizona, and Utah meet at right angles; New Mexico is also bord...

(Encyclopedia)  CE5 Uzbekistan o͝ozbĕkĭstänˈ [key], Uzbek Ozbekiston, officially Republic of Uzbekistan, republic (2015 est. pop. 29,200,000), 173,552 sq mi (449,500 sq km), central Asia. The republic, which ...