Other attributes
Sahara - largest hot desert. Area 9,200,000 square kilometers (3,600,000 sq mi).
The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, and the Libyan Desert.
The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and the Sudan.
The landscape of the Sahara is very diverse. Most of its territory (up to 70% is occupied by plain clayey serirs.
Sahara
The mountain ledges are highest in the Central Sahara. In addition to plains, plateaus and mountains, numerous shallow saline drainless basins and large depressions in which oases are found are distinguished in the Sahara.
The vegetation of the Sahara is sparse, consisting of herbs, shrubs and trees growing in oases, highlands and along rare water sources.
Oases
The picturesque oasis of Ubari attracts the attention of tourists from all over the world. One of the most beautiful and visited lakes of the oasis is the aforementioned Umm al-Maa lake, as well as Gaberun. An interesting feature is that the water temperature at depth is always much higher than at the surface.
Unfortunately, the lakes are gradually drying up. Some, such as Lake Mandara, are filled with water only in winter, and even then not every year.
