About97%oftheworld’swaterissaltyandisfoundinouroceansan...
问题详情：About97%oftheworld’swaterissaltyandisfoundinouroceansandseas.But,aswecan’tdrinkseawater,howcanitbeimportant?Everypartofourseasandoceanscontainsanamazingnumberofanimalsandfishthatliveatdiffer...