African Basins

Q. Which of the following are important river basins in Africa?

1. The Sudan Basin
2. The Zaire Basin
3. The Djouf Basin
4. The Orange Basin

Q. Which of the following river basins is the site of the world's most extensive marshland?

1. The Sudan basin
2. The Chad basin
3. The Djouf basin
4. The Kalahari basin