Using CGI, National Geographic, NASA, and the U.S. Geological Survey show how the planet's mountains, land masses, and oceans were formed. BRAND : GAIAM, INC. GENRE : TELEVISION: NATIONAL GEOGRAPHI MANUFACTURER : NATIONAL GEOGRAPHIC/VISUAL ENT PRODUCT TYPE : DVD PRODUCT TYPE : DVD RATING : NR RATING : NR RELEASE DATE : 23-JAN-2007 RETURNS ACCEPTED? : YES RUNTIME : 150
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