Small rivers may be called by several other names, including stream, creek, brook, rivulet, and rill. A river is a natural watercourse usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely at the end of its course, and does not reach another body of water.

Following are the top 10 longest rivers in the world

10. Amur and Argun Rivers in Asia
Argun comes from the Mongolia region of China, where it is referred as Hailar River and the Amur River comes from Russia and meets Argun to join the Pacific. The combination of Amur River and Argun River become the 10 longest rivers in the world.

9. Congo and Chambeshi
Depth of Congo River is 720ft and more that Congo River is the deepest river in the world and the Chambeshi River is come from Zambia. Congo River and Chambeshi River are used to generate electricity. In the list of top 10 longest rivers in the world, this longest river is stands at 9th number.

8. Parana and Rio de la Plata
Parana River comes from Brazil, Paraguay and Argentina. Parana River is about 4880 km long. Rio de la Plata comes from between Argentina and Uruguay. These 2 rives come together and form the 8th longest river in the world.

7. Ob and Irtysh
Ob River comes from Russia and more that Ob river is 4th longest river in Russia. Ob River is 2268 miles long. Irtysh joins the Ob River in Western Siberia. In the list of top 10 longest rivers in the world, this longest river is stands at 7th number.

6. Yellow River, Asia
The Yellow River or Huang He is the second-longest river in Asia and the sixth-longest in the world at the estimated length of 5,464 km. this river is also called as the cradle of Chinese civilization.

5. Yenisei River
The Yenisei is the largest river system flowing to the Arctic Ocean. It is the central of the three great Siberian Rivers that flow into the Arctic Ocean. Total length of this river is 3,487 km. In the list of top 10 longest rivers in the world, this longest river is stands at 5th number.

4. Mississippi- Missouri- Jefferson Rivers in North America
Mississippi River, Missouri River and Jefferson River is the 4th longest river in the world. Missouri River hails from the Rocky Mountain. The combined length of the river is 6275 kilometers.

3. Yangtze River
The Yangtze River, known in China as the Chang Jiang or Yangzi, is the longest river in Asia. In the list of top 10 longest rivers in the world, this longest river is stands at 3rd number.

2. Amazon River
The Amazon River in South America is the largest river by discharge of water in the world, averaging a discharge of about 209,000 cubic meters per second.

1. Nile River
The Nile is a major north-flowing river in northeastern Africa, generally regarded as the longest river in the world. It is 6,853 km long. In the list of top 10 longest rivers in the world, this longest river is stands at 1st number.