UMary Allen
Umoya-mpilo uyisici. Le nto ngokuvamile itholakala njengegesi. Ingxenye yesihlanu yomoya osizungezile iwumoya-mpilo. Umoya-mpilo ubaluleke kakhulu kubantu nasezilwaneni: uwudinga ukuze uphefumule.
Isikhathi eside, abantu babazi umoya kuphela. Nokho, ekhulwini le-18, kwaqondwa ukuthi iqukethe izinto eziningana. Umoya-mpilo uvame ukuba nendima lapho okuthile kusha emlilweni. Khona-ke izakhi zihlangana nomoya-mpilo. Lokhu kwenzeka futhi ngokugqwala: insimbi imunca umoya-mpilo kancane kancane, futhi ukugqwala empeleni kuyinhlanganisela yensimbi nomoya-mpilo.
Umoya-mpilo uyisici esivame kakhulu emhlabeni. Akukhona nje emoyeni: idwala nesihlabathi kuqukethe umoya-mpilo. Amanzi aqukethe i-hydrogen nomoya-mpilo.
Into ayinawo umbala futhi ayinaphunga. Uma ulenza libanda kakhulu, liba uketshezi noma liqine. Khona-ke iqukethe amakristalu aluhlaza okwesibhakabhaka.