1. Yiyiphi ioli yebhayisiki ekhethiweyo yokukhetha: Ukuba unohlahlo lwabiwo-mali oluncinci, khetha ioli ye-mineral, kodwa ixesha layo lokuphila lide kakhulu kuneoli yokwenziwa. Ukuba ujonga ixabiso lilonke, kubandakanywa nokuthintela ukubola kwetsheyini kunye nomhlwa, kunye nokongeza iiyure zabantu kwakhona, ngokuqinisekileyo kuyabiza kakhulu ukuthenga i-syn...
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