1.Izinhlayiya ezifanayo, alukho uthuli;
2.Ukuqedwa okusheshayo, umphumela omuhle wokuhlakazeka, akukho ukungcola okuntantayo kanye nemvula;
I-3.I-oxidation ephelele ngemva kombala, isivinini esisheshayo, ukushesha kombala ophezulu, imiphumela ye-gradient eyengeziwe