Ask AI: What is the longest river in Africa? Indicate the location of its source and mouth.

The longest river in Africa is the Nile River. The Nile River's major tributaries are the White Nile and the Blue Nile. - **Source:** The White Nile, considered the primary stream, has its most distant sources in the Great Lakes region of central Africa. The most remote source is generally considered to be in Burundi or Rwanda. Lake Victoria in Uganda is also a significant source for the White Nile. - **Mouth:** The Nile River flows northward through northeastern Africa, ultimately emptying into the Mediterranean Sea in Egypt. Specifically, it forms a large delta known as the Nile Delta before it reaches the Mediterranean. The combined flow of the White Nile and the Blue Nile, which merges in Khartoum, Sudan, travels through multiple countries including South Sudan, Sudan, and Egypt, making it a vital waterway for the region.