Into what ocean do most of South America's rivers flow?

Since the Andes Mountains run along the west coast of South America, most of the rivers must flow into the ocean that is east of this continent.

Most of South America's rivers flow into the Atlantic Ocean.

Most of South America's rivers flow into the Atlantic Ocean. To understand this, let's take a closer look at South America's geography.

South America is a continent located mainly in the Southern Hemisphere, and it is the fourth largest continent by area. The continent is bordered by the Pacific Ocean on the west and the Atlantic Ocean on the east.

The Andes mountain range runs along the western edge of South America, forming a natural barrier for the rivers to flow into the Pacific Ocean. As a result, most of South America's rivers that originate in the Andes mountains flow eastward towards the Atlantic Ocean.

These rivers include some of the most well-known ones, such as the Amazon River, which is the largest river in terms of water volume and discharge in the world. The Amazon River and its tributaries, such as the Madeira, Juruá, and Negro rivers, all flow eastward into the Atlantic Ocean.

Other important rivers in South America that flow into the Atlantic Ocean include the Orinoco River in Venezuela, the Paraguay and Paraná rivers in Brazil, Argentina, and Paraguay, and the Uruguay and La Plata rivers in Argentina and Uruguay.

In summary, most of South America's rivers flow into the Atlantic Ocean due to the presence of the Andes mountain range along the western side of the continent.