A recent Portuguese article listed the 20 largest rivers in the world. “Only about 3% of all water on the planet is fresh water, found mainly in glaciers and rivers” The source of one of the 20 largest rivers in the world is in Bolivia (rio Madeira), while two more run through Bolivia (Amazon and Paraná Rivers).
“Rio Madeira has a large part of its extension in Brazilian territory. However, its source is located in Bolivia, giving rise to the Beni River. Then, the river joins tributaries of the region and runs through the mountain ranges in Peru, until it enters Brazil.” This river is 3,3380 kilometers long.
“The Amazon River is a river so extensive” (6992 kilometers) “that it spans different countries. Its source is located in Peru, in Nevado Mismi, and the course of the river runs through Colombia, Brazil, Venezuela, Bolivia, Ecuador and Guyana. Due to its large extent, the Amazon is also the river with the largest volume of water on the planet and immense diversity of fauna and flora around it.”
“The Paraná River is the first in the list where the source is located in Brazilian territory. It is the second largest in Latin America” (4880 kilometers) “and extends through Argentina, Uruguay, Paraguay and Bolivia.”