In terms of length, the Amazon River is not the longest river in the world. The longest river in the world is the Nile River, which is 6,670 kilometers long, while the Amazon River is 6,400 kilometers long. But the two are completely different in terms of water volume.

Most of the Nile River flows through arid areas, which results in a very small annual runoff of the Nile River. China's largest river is the Yangtze River, which has an annual runoff of nearly 100 million cubic meters, while the Amazon River has an annual runoff of nearly 700 million cubic meters, equivalent to seven Yangtze Rivers. The annual runoff of the Amazon River is equivalent to the sum of the runoffs of the other nine of the world's top ten rivers, which is really crazy.

One-fifth of the river water that flows into the sea through rivers every year is provided by the Amazon River. In terms of basin area, the Amazon River is also a well-deserved giant. The basin area of ​​the Yangtze River is 1.8 million square kilometers, while the basin area of ​​the Amazon River is as high as 6.91 million square kilometers, equivalent to the area of ​​the entire Australian continent. If the Amazon River were in our country, it would be equivalent to the vast area from Shanxi to Guangdong, covering 70% of China's land area.