Answer and Explanation:
[tex]Most~of~the~Shield~is~relatively~flat~with~rounded~hills~of[/tex] [tex]rock~that~are~the~roots~of~ancient~mountains.~It~has~rocky~outcrops[/tex] [tex]and~the~soil~is~very~thin.~The~center~of~the~Shield~is[/tex] [tex]much~lower~than~its~outer~portion.[/tex]