Ngokuthuthuka kwesayensi nobuchwepheshe, isidingo semikhiqizo kagesi siyanda, futhi izingozi zikagesi sezivamile.Ukulimala kwemishini okubangelwa ukungazinzi kwamandla kagesi, ukushintsha kukagesi okungazelelwe, ukunyuka, ukuguga kolayini, nokushaya kombani kuningi nakakhulu.Ngakho-ke, ukushisa...
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