Approximately about 25% <span>of the Sahara Desert is covered by sand sheets and dunes. The correct option among all the options that are given in the question is the second option. The other choices are incorrect and can be neglected. I hope that this is the answer that has actually come to your help.</span>
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<span>in the central portion of the country.</span>
It can be calculated if you know the mass of the earth and the volume of the earth : (density is p) so p= m/v
I believe its D. depletion, environmental, job<span />
