9. Congo- Chambeshi, Africa
The Congo river is one of the longest rivers in the world. With a depth of 720 ft., it is also the deepest river in the world. The river comes from the Congo rainforest, which is the 2nd largest rain forest in the world. The Chambeshi river comes from Zambia and is its main source of water. The 2 rivers are used to generate electricity. The Congo and Chambeshi river meet to form the 9th longest river in the world.