Intshayelelo Iigesi zemizi mveliso ezifana neoksijini, initrogen, ikharbon diokside, iargon, kunye nehydrogen zisisiseko kumashishini amaninzi, kubandakanya nokhathalelo lwempilo, ukuvelisa, kunye nokwenziwa kokutya. Ezi gesi kufuneka zicoceke kwaye zingabikho kwizinto ezingcolileyo ukuqinisekisa ukusebenza okukhuselekileyo nokusebenzayo. Isihluzo segesi...
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