In Pakistan the desert ecosystems are found in western Punjab (Mianwali and Bukhar) where it is known as "Thai". In southern Punjab Pur (Cholistan), Khan Pur and Rahim Yar Khan also have deserts.
In Sindh this desert ecosystem is called "Thar". These biomes are found on every continent often around 20 to 30 north and south latitude and also in the rain shadows of major mountain ranges. Desert includes a variety of environment. At one extreme are certain areas of the Sahara or Chile, where it virtually never rains and there is no vegetation at all.
The more common deserts, however, are characterized by widely spaced vegetation and large areas of bare ground.
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