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1IntroductionDuringtheperiodoftimeglaciationwasatitsmaximum,sealevelwas120mlowerthanatthepresent.Theworld'sriversatthattimefl...
1IntroductionDuringtheperiodoftimeglaciationwasatitsmaximum, sealevelwas120mlowerthanatthepresent. Theworld’sriversatthattimefl ...