Waa maxay Antarctica?
Antarctica waa gobol ku yaalla koonfurta dhulka, oo ka soo horjeeda gobolka Arctic ee ku xeeran waqooyiga. Antarctica waxaa ku jira qaaradda Antarctica, Kerguelen Plateau iyo dhulal kale oo jasiirad ah oo ku yaal Antarctic Plate ama koonfurta Antarctic Convergence. Gobolka Antarctic waxaa ku jira barafka, biyaha, iyo dhammaan jasiiradaha ku yaal Koonfurta Badweynta oo ku taal koonfurta Isku-xidhka Antarctic, aag qiyaastii 32 illaa 48 km (20 illaa 30 mi) ballaaran oo leh kala duwanaansho xilliyeed. Gobolkani wuxuu daboolayaa qiyaastii 20 boqolkiiba koonfurta dhulka, taas oo 5.5 boqolkiiba (14 milyan oo km2) ay tahay dusha sare ee qaaradda Antarctica lafteeda. Dhammaan dhul-beereedka iyo barafka ka baxsan koonfurta 60 ° S latitude waxaa lagu maamulaa Nidaamka Heshiiska Antarctic. Biogeographically, gobolka Antarctic waa mid ka mid ah siddeed gobol oo biogeographic ah oo ka mid ah dhulka dhulka.