Posts Tagged ‘axis’
What made the climate of northern Africa change from tropical to grasslands, and then to desert?
April 9th, 2010 | 
Author: What made the climate of northern Africa change from tropical to grasslands, and then to desert?
tilt of the earth’s axis
the Nile River
Ice Ages
overpopulation of the region
Please only answer if you know FOR SURE.
Posted in Green Q&A | 
Tags: axis, Climate, Earth, grasslands, nile river, northern africa, overpopulation, river ice, tilt | 
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