Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Chibvumirano cheAntarctic nezvibvumirano zvakabatana nazvo zvinodzora ukama hwenyika dzakawanda pamusoro peAntarctica, kondinendi bedzi yapasi isina vagari vomunzvimbomo. Chibvumirano chacho zvino chakasainwa nenyika 48, kubatanidza United Kingdom, United States, uye Soviet Union yakaparara zvino. Chibvumirano chacho chakaisa parutivi Antarctica senzvimbo inochengeterwa zvesayenzi, chakavamba rusununguko rwekunzvera kwesayenzi uye chakarambidza mubato wehondo mukondinendi iyoyo. Ichi chakanga chiri chibvumirano chokutanga chokudzora zvombo chakagadzwa mukati meHondo Yemashoko. Soviet Union neUnited States zvose zviri zviviri zvakaisa zvigadzikiso mukurambidzwa kwezvikumbiro zvitsva, uye United States neRussia dzinotaura kodzero yadzo yokuita zvikumbiro munguva yemberi kana dzikasarudza kudaro. Brazil inochengeta Comandante Ferraz (Brazil Antarctic Base) uye yakapa pfungwa yekuganhurira matunhu uchishandisa meridians, izvo zvaizopa iyo nedzimwe nyika chikumbiro. Kazhinji, zvikumbiro zvenharaunda zviri pasi pe60° S parallel zvave zvichizivikanwa chete pakati penyika idzo dzinoita zvikumbiro munzvimbo iyi. Zvisinei, kunyange zvazvo zvikumbiro zvichiwanzoratidzwa pamepu dzeAntarctica, izvi hazvirevi kuzivikanwa nomutemo.  Mubvunzo: Inyika dzipi mbiri dzakarambidza kuti dzimwe nyika dzisaita zvadzo muAntarctica?
Soviet Union neUnited States