Table of Contents
For Students
Read Next
Discover
Drainage is notably affected by the physical dissymmetry of the continent. The major basins lie east of the Andes, and the main rivers flow to the Atlantic Ocean. The four largest drainage systems—the Amazon, Río de la Plata (Paraguay, Paraná, and Uruguay rivers), Orinoco, and São Francisco—cover about two-thirds of the continent. By far the largest system is formed by the Amazon River, which stretches some 4,000 miles (6,400 km) across equatorial South America. The volume of water it carries surpasses that of all other rivers, constituting one-fifth of the total flowing fresh water of the world. About 6,350,000 cubic ...(100 of 23598 words)