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Caspian Sea

(Encyclopedia)Caspian Sea kăsˈpēən [key], Lat. Mare Caspium or Mare Hyrcanium, salt lake, c.144,000 sq mi (373,000 sq km), between Europe and Asia; the largest lake in the world. It is bordered on the northeast...

Cossacks

(Encyclopedia)Cossacks kŏsˈăks, –əks [key], Rus. Kazaki, Ukr. Kozaky, peasant-soldiers in Ukraine and in several regions of Russia who, until 1918, held certain privileges in return for rendering military ser...

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...

Europe

(Encyclopedia)CE5 Europe yo͝orˈəp [key], 6th largest continent, c.4,000,000 sq mi (10,360,000 sq km) including adjacent islands (2015 est. pop. 740,814,000). It is actually a vast peninsula of the great Euras...

Asia

(Encyclopedia)CE5 Asia āˈzhə [key], the world's largest continent 17,139,000 sq mi (44,390,000 sq km) and most populous (2015 est. pop. 4,419,898,000), with nearly three fifths of the world's total population...

Siberia

(Encyclopedia)Siberia sībērˈēə [key], Rus. Sibir, vast geographical region of Russia, covering c.2,900,000 sq mi (7,511,000 sq km) and having an estimated population (1992) of 32,459,000. Historically it has h...

Russia

(Encyclopedia)CE5 CE5 Russia, officially the Russian Federation, Rus. Rossiya, republic (2015 est. pop. 143,888,000), 6,591,100 sq mi (17,070,949 sq km). The largest country in the world by area, Russia is bou...