About97%oftheworld’swaterissaltyandisfoundinouroceansan...
問題詳情：About97%oftheworld’swaterissaltyandisfoundinouroceansandseas.But,aswecan’tdrinkseawater,howcanitbeimportant?Everypartofourseasandoceanscontainsanamazingnumberofanimalsandfishthatliveatdiffer...