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Awareness of the Living World
IN THE BEGINNING
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American animals appear areas beauty become beginning birds called century cities civilization clear conservation continued course early earth effect environment fall feet fields fish forest future give green ground grow growth hand hills human hundred increase Indians industrial kill kind lake land leaves less limited live look man's material means miles million mind mountain nature never once Park passed perhaps plain plants pollution population portions possible present preserve problem produce progress question reason region result rich river road seems seen selection soil soon spring streams supply taken things thought thousand timber tion town trees turn United valley vast waste whole wild wilderness wind woods