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An Oasis is a fertile area in a desert,surrounding a water source like a spring,small lake or a pond.
An Oasis is formed from underground rivers.
It is formed when a pre-existing depression formed through faulting or otherwise is exposed to wind erosion. Wind eddies removes unconsolidated materials through deflation. As deflation continues, the depression is deepened and enlarged. The process of deflation is aided by weathering. With continued deflation, the level of the water table is reached. Water oozes out of the ground and collects into the depression to form an oasis.
maurice.mutuku answered the question on June 9, 2017 at 08:18
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