What are three rivers in South America?

Three? Three? There are hundreds of rivers in South America. There's the Amazon, the largest river in the world by volume. It carries more water than the next six largest rivers combined. Two of which - the Madeira and the Rio Negro - are mere tributaries of the Amazon. read more

One of the three major river systems in Central South America. It runs through Paraguay and Argentina for about 1, 600 miles. The length of river increases to about 2,484 miles if the headwaters of river in Brazil is counted. It's second in size to the Amazon River in South America. read more

Two other major South American rivers, the Orinoco and the Rio de la Plata, are also among the 10 largest rivers by volume. Fully half of the world’s 10 largest rivers by volume of discharge are in South America. 5 of the top 10. 9 of the top 20. read more