Ⅱ Ukungena komoya ongaphansi komhlaba, ngenxa yokusebenza kwezimayini kanye ne-mineral oxidation nezinye izizathu, ukwakheka komoya kuzoshintsha, kubonakale ikakhulukazi njengokuncishiswa komoya-mpilo, ukwanda kwamagesi anobuthi nayingozi, ukuxuba uthuli lwamaminerali, izinga lokushisa, umswakama, ukushintsha kwengcindezi, njll. Lezi chan...
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