Umoya weMars incinci kunelo yomhlaba. Emhlabeni, iipesenti ezingama-21 zomoya yioksijini, iyenza yindawo efanelekileyo yobomi bomntu. Kodwa kwi-Mars, ioksijini yenza i-0.13 pesenti yomoya. Uninzi lukharbon diokside, oluyingozi ebantwini. Language: Xhosa