6. What is an oasis ? Discuss its importance in the desert areas?
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An oasis is an small patch of vegetation surrounded by desert. Communities have traditionally planted strong trees, such as palms, around the perimeter of oases to keep the desert sands from their delicate crops and water. An oasis is an area made fertile by a source of freshwater in an otherwise dry and arid region.
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The location of oases has been of critical importance for trade and transportation routes in desert areas; caravans must travel via oases so that supplies of water and food can be replenished. Thus, political or military control of an oasis has in many cases meant control of trade on a particular route.
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