The Congo flows into the Atlantic ocean from south west Congo Africa,
Nile river and Amazon river
The Chambeshi River in Zambia is generally taken as the source of the Congo in line with the accepted practice worldwide of using the longest tributary, as with the Nile River.
The Nile river runs through Egypt, Ehiopia, Zaire, Kenya, Uganda, Tanzania, Rewanda, Burundi, and Sudan.
The links below will give this and further details.
The Congo - Chambeshi River, also known as the Zaire River at 2,922 miles long
The Amazon flows eastward from the Andes, across Brazil to the Atlantic Ocean.
The largest river in Central Africa is the Congo River, also known as the Zaire River.
Egypt has only one river - the river Nile, the longest river in the world.
Nile River
there are 3 crocodiles live in the river Nile and piranhas but neither of them live in the river Thames and the Nile is only 4,132 and the Thames is 215 and the Nile flows through jungle and desert and the Thames does not so there you have it 3 differences
Nile River