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Map of South America.(World Atlas: 2003-2004 skills manual)

South America is Earth's fourth-largest continent, with a land area of almost 7 million square miles. South America's longest river is also the world's second-longest. It flows eastward to the Atlantic and is navigable for 2,300 miles. The area drained by this river and its tributaries comprises more than one third of the continent and receives so much rainfall that it has produced the world's largest tropical rain for est. Earth's longest mountain chain hugs the western edge of South America. Argentina's Mount Aconcagua, located in these mountains, is the Western Hemisphere's highest point (22,834 ft). Scientists are concerned that many mountain glaciers are melting due to ...

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