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