South America
The South American continent stretches from about 10° above the equator to almost 60° below it, encompassing an area of 6,880,706 sq mi (17,821,028 sq km). This is almost 12% of the surface area of the earth. It is about 3,180 mi (5,100 km) wide at its widest point, and is divided into 10 countries. The continent can be divided into three main regions with distinct environmental and geological qualities: the highlands and plateaus of the east, which are the oldest geological feature in the continent; the Andes Mountains, which line the west coast and were created by the subduction of the Nazca plate beneath the continent; and the riverplain, between the highlands, which contains the Amazon River. The South American climate varies greatly based on the distance from the equator and the altitude of the area, but the range of temperatures seldom reaches 36°F (20°C), except in small areas.
The Eastern highlands and plateaus are the oldest geological region of South America, and are thought to have bordered on the African continent at one time, before the motion of the earth's crust and continental drift separated the continents. The Eastern highlands can be divided into three main sections, the Guiana Highlands, the Brazilian Highlands, and the Patagonian Highlands.
This is a free page. This page contains 201 words. This
article contains 3,695 words (approx. 12 pages at 300
words per page).
Read the rest of this Article with our South America Access Pass.
