Nile is the longest river in the world, which originates from the Burundi Plateau in northeast Africa and flows through nine countries including Rwanda, Burundi, Tanzania, Kenya, Uganda, Zaire, Sudan, Ethiopia and Egypt, with a total length of more than 6,600 kilometers. Finally, it flows into the Mediterranean Sea, which is one of the most international rivers in the world.

Amazon has the largest traffic.

The Amazon River is also known as the Amazon River. Known as the "King of Rivers", the Amazon River has a total length of more than 6,440 kilometers, with thousands of tributaries. Together with the main stream, it forms an Amazon river system with a total length of more than 60,000 kilometers, with a drainage area of 7.05 million square kilometers, accounting for about 40% of the total area of South America. The annual amount of water injected into the Atlantic Ocean is about 6,600 cubic kilometers, which is equivalent to16 of the total amount of water injected into the ocean by rivers in the world.