Yini ebangela ukuzamazama komhlaba?
Ukuzamazama komhlaba kubangelwa ukucindezelwa okukhona phakathi kwamapuleti ashukumisayo akha uqweqwe lomhlaba. Amapuleti ama-tectonic akha amazwekazi ethu futhi ahlala ehamba ngaphansi, ngaphezulu nangasohlangothini. Njengoba zihamba zikhuphuka izintaba, amagquma, ziphambukisa imifula, imifudlana nemifudlana. Ngokuvamile ukuzamazama komhlaba kubangela izinhlekelele ezinkulu nokuhlupheka kwabantu.