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A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid.
Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. [ 1] Deserts and xeric (ancient Greek xērós, “dry") shrublands form the largest terrestrial biome, covering 19% of Earth 's land surface area. [ 2] Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than ...
Tropical deserts are located in both continental interiors and coastal areas between the Tropic of Cancer and Tropic of Capricorn. Representative deserts include the Sahara Desert in North Africa, the Australian Desert in Western and Southern Australia, Arabian Desert and Syrian Desert in Western Asia, the Kalahari Desert in Southern Africa ...
Desert ecology is the study of interactions between both biotic and abiotic components of desert environments. A desert ecosystem is defined by interactions between organisms, the climate in which they live, and any other non-living influences on the habitat. Deserts are arid regions that are generally associated with warm temperatures; however ...
The Sahara (/ s ə ˈ h ɑːr ə /, / s ə ˈ h ær ə /) is a desert spanning across North Africa.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 northern Arctic.
Desert climate. The desert climate or arid climate (in the Köppen climate classification BWh and BWk) is a dry climate sub-type in which there is a severe excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert climates are dry and hold little moisture, quickly evaporating the already little rainfall ...
Setting. The Sahara Desert is the world's largest hot, non-polar desert and is located in North Africa. It extends from the Atlantic Ocean in the west to the Red Sea in the east, and from the Mediterranean Sea in the north to the Sahel savanna in the south. [2] The vast desert encompasses several ecologically distinct regions.
Protected. 4.368% [ 1] The Arabian Desert ( Arabic: ٱلصَّحْرَاء ٱلْعَرَبِيَّة) is a vast desert wilderness in West Asia that occupies almost the entire Arabian Peninsula with an area of 2,330,000 square kilometers (900,000 sq mi). [ 3] It stretches from Yemen to the Persian Gulf and Oman to Jordan and Iraq.
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