What are deserts often sparsely pupulated

Some of the factors which satisfy the fact behind the sparse population in a desert: No water is available and hence people could get dehydrated. the land is not fertile to grow crops, which means no agriculture and no food. The hot desert climate makes you catch heat strokes

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well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns