Continents of the world
Continents of the world :
Africa | Antarctica
| America | Asia
| Australia | Eurasia
| Eurafrasia | Europe
| Oceania | North
America | South
America
South America
South America is a continent situated in the western hemisphere and, mostly, the southern hemisphere, bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest.
As part of the Americas like North America, South America is named after Amerigo Vespucci, who was the first European to suggest that the Americas were not the East Indies, but a New World unknown to Europeans.
South America has an area of 17,840,000 km² (6,890,000 sq mi), or almost 3.5% of the Earth's surface. As of 2005, its population was estimated at more than 371,000,000. South America ranks fourth in area
 Photo :: © FreeStockPhotos.com
Geography
South America is generally considered a continent forming the southern portion of the American landmass, south and east of the Panama Canal transecting the Isthmus of Panama. Depending on the source, South and North America are sometimes considered a single continent or supercontinent, while constituent regions are infrequently considered subcontinents. Geologically, almost all of mainland South America sits on the South American Plate. Geopolitically, all of Panama – including the segment east of the Panama Canal in the isthmus – is often considered a part of North America alone and among the countries of Central America.
The continent became attached to North America only recently (geologically speaking) with the formation of the Isthmus of Panama some 3 million years ago (hypothesis) , which resulted in the Great American Interchange. The Andes, likewise a comparatively young and seismically restless mountain range, run down the western edge of the continent; the land to the east of the Andes is largely tropical rainforest, the vast Amazon River basin. The continent also contains drier regions such as Patagonia and the extremely arid Atacama Desert.
The South American continent also includes various islands, many of which belong to countries on the continent. Many of the islands of the Caribbean (or West Indies) – e.g., the Leeward and Lesser Antilles – sit atop the Caribbean Plate, a tectonic plate with a diffuse topography. The islands of Aruba, Barbados, Trinidad, and Tobago sit on the northerly South American continental shelf. The Netherlands Antilles and the federal dependencies of Venezuela lie along the northerly South American. Geopolitically, the island states and overseas territories of the Caribbean are generally grouped as a part or subregion of North America. The South American nations that border the Caribbean Sea – including Colombia, Venezuela, Guyana, Suriname, and French Guiana – are also known as Caribbean South America.
South America is home to the world's highest waterfall, Angel Falls in Venezuela, the largest river (by volume), the Amazon River, the longest mountain range, the Andes, the driest desert, Atacama, the largest rainforest, the Amazon Rainforest, the highest railroad, Ticlio Peru, the highest capital city, La Paz, Bolivia, the highest commercially navigable lake in the world, Lake Titicaca, and the world's southernmost town, Puerto Toro, Chile.
South America's major natural resources are gold, silver, copper, iron ore, tin, and oil. The many resources of South America have brought high income to its countries especially in times of war or of rapid economic growth by industrialized countries elsewhere. However, the concentration in producing one major export commodity often has hindered the development of diversified economies. The inevitable fluctuation in the price of commodities in the international markets has led historically to major highs and lows in the economies of South American states, often also causing extreme political instability. This is leading to efforts to diversify their production to drive them away from staying as economies dedicated to one major export.
South America is home to many interesting and unique species of animals including the llama, anaconda, piranha, jaguar, vicuna, and tapir. The Amazon rainforests possess high biodiversity, containing a major proportion of the Earth's species.
The largest country in South America by far, in both area and population, is Brazil, followed by Argentina. Regions in South America include the Andean States, the Guianas, the Southern Cone, and Brazil.
 Map :: South America (Reference Map) 2004, Courtesy of the University of Texas Libraries, The University of Texas at Austin
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