A desert is a hostile, potentially deadly environment for unprepared humans. In hot deserts, high temperatures cause rapid loss of water due to sweating, and the absence of water sources with which to replenish it can result in dehydration and death within a few days. In addition, unprotected humans are also at risk from heatstroke.== ملخص ==
photo of Thar desert near Jaisalmer in India
Source
originally uploaded by Shiva-Nataraja in fr-Wikipedia
picture by 2004, Serge Duchemin
ترخيص
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==Description== photo of Thar desert near Jaisalmer in India ==Source== originally uploaded by Shiva-Nataraja in fr-Wikipedia picture by 2004, Serge Duchemin