I-oxygen yezokwelapha ijwayele ukuqhuma lapho uchayeka elangabini elifihliwe njengoba noma iyiphi into ivutha endaweni enomoya-mpilo., ukufeza zonke izindlela ezintathu zokuvutha.
Amandla omlilo nokuqhuma makhulu. Ngakho, kubalulekile ukugwema noma yikuphi ukuxhumana phakathi komoya-mpilo kanye namalangabi avulekile nanoma yimiphi eminye imithombo yokuthungela ngesikhathi sokusetshenziswa kwawo..