Before the Sahara dried up, how many rivers were there within it?

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2007-01-25 04:34:47 · 2 answers · asked by zebbie g 2 in Environment

There were hundreds. Their dry valleys are called "wadis" on maps, and are a frequent feature on the landscape.

2007-01-25 04:46:30 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋

three major, six minor and eight sets of wetlands.

Wait ten thousand years and North America will look the same

2007-01-25 12:42:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋