Kutheni uninzi lomhlaba osemhlabeni usemantla ekhweyitha?
Kwenzeka nje ukuba kube njalo ngalo mzuzu. Enoba uyakholelwa okanye akunjalo, amazwekazi omhlaba ahamba kancinane. Malunga neminyaka engama-300 ezigidi eyadlulayo, isijikelezi-langa sethu sasinelizwe elikhulu elalibizwa ngokuba yiPangea. Ngokuyintloko yayikumzantsi weikhweyitha. Kwiminyaka engama-200 ezigidi, izinto ziya kutshintsha kwakhona.