00382    a2200145   4500020001500000082001300015100002400028245004700052260004200099300001700141650001800158700002200176700002200198700001600220  a0134344839  a550bSCI  aPadilla, Michael J.  aEarth's changing surfacebscience explorer  aNew JerseybPrentice-Hallc2000g2000  a176p.c28cm.  aEARTH SCIENCE  aExline, Joseph D.  aMiaoulis, Ioannis  aCyr, Martha