Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. In the northern Sahara, these formations are also associated with a series of basins and depressions extending from the oases of western Egypt to the chotts of Algeria. They cover about 1/3 of the earth’s surface and are found in 60 of the world’s nations. …

They also have large ears to aid in the dissipation of excess body heat during hot days. The heated ground, plus the hot air, radiates the heat absorbed during the day back to the atmosphere, triggering rapid drop in temperatures. Sahara, (from Arabic ṣaḥrāʾ, “desert”) largest desert in the world. Other noteworthy formations include the Ennedi Plateau of Chad, the Aïr Massif of Niger, the Iforas Massif of Mali, and the outcroppings of the Mauritanian Adrar region. Sand sheets and dunes cover approximately 25 percent of the Sahara’s surface. Filling nearly all of northern Africa, it measures approximately 3,000 miles (4,800 km) from east to west and between 800 and 1,200 miles from north to south and has a total area of some 3,320,000 square miles (8,600,000 square km); the actual area varies as the desert expands and contracts over time. • Because of the stability of the shield, subsequently deposited Paleozoic formations have remained horizontal and relatively unaltered. Some have developed long taps roots to be able to reach water tables. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.

Cloudflare Ray ID: 5d988ed47aeeee2b • Those located in South America cover an area of about 684, 000 million square miles. In spite of these challenges, a wide range of plants grows in this biome. (And Process of Formation), How Were the Himalayas Formed? A map showing the generalized location of Earth's ten largest deserts and a table of over 20 major deserts. The largest hot desert in the world is the Sahara in North Africa.
Foxes survive here due to their burrowing and nocturnal lifestyles. Sand dunes in the Sahara, near Merzouga, Morocco. The Sahara (/ s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /; Arabic: الصحراء الكبرى ‎, aṣ-ṣaḥrāʼ al-kubrá, 'the Greatest Desert') is a desert located on the African continent.With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third largest desert overall, smaller only than the deserts of Antarctica and the Arctic. The world’s largest desert is the Sahara, which covers nearly all of northern Africa. Of all the deserts in the world, Australian deserts have the lowest human population, by far. The name Sahara derives from the Arabic noun ṣaḥrāʾ, meaning desert, and its plural, ṣaḥārāʾ. Their thick, sandy fur helps protect them from the cold nights in the desert. For example, a recognizable desert animal like the Camel can get by for days without food and water due to the fat stored in its hump. On the flip side, the deserts located in the Central area are characterized by folded mountains, high landscape heterogeneity, as well as enclosed basins.

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