Isikhumba sakho siyisitho esikhulu kunazo zonke somzimba wakho, esakhiwe izingxenye eziningana ezahlukene, okuhlanganisa amanzi, amaprotheni, amafutha, kanye namaminerali namakhemikhali ahlukene.Umsebenzi wayo ubalulekile: ukukuvikela ezifweni kanye nokunye ukuhlaselwa kwemvelo.Isikhumba siqukethe nemizwa ezwa ukubanda, ukushisa, p...
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