Which of the following statements about the Great Rift Valley is TRUE? 1. Kilimanjaro, one of the main volcanic cones, is located along the eastern branch of the valley
2. Located on the eastern branch of the valley, Lake Tanganyika is one of the deepest salt water lakes in the world
3. It forms 3 branches, with volcanic mountains rising at its edges and lakes running parallel to its length
4. It extends from Ethiopia in the north to Malawi in the south