What is the largest and most important river system in south america? a. the amazon b. the orinoco c. the rio grande d. the rio de la plata

South America has three important river basins: the Amazon, Orinoco, and Paraguay/Paraná. The Amazon River basin has an area of almost 7 million square kilometers (2.7 million square miles), making it the largest watershed in the world.

so the correct anser is A- The Amazon

answer; sociological imagination;

answer; social facts;