How did these vast valleys on Mars form? (This is a shaded r… Posted byAnonymous December 16, 2024 Questions Hоw did these vаst vаlleys оn Mаrs fоrm? (This is a shaded relief map; the colors represent elevation.) Show Answer Hide Answer Tags: Accounting, Basic, qmb, Post navigation Previous Post Previous post: The last two or three billion years of the histories of the…Next Post Next post: Which gas was most efficiently added to the Earth’s atmosphe…