N'ime ụlọ ọrụ ọkụ, enwere ike iji ngwaahịa nzacha na-edozi mmanụ ọkụ, ikuku, mmiri, wdg, iji wepụ ihe ndị na-emerụ emerụ ma hụ na nchekwa, nkwụsi ike, na enyi gburugburu ebe obibi nke ọkụ ọkụ ọkụ ọkụ, ikuku na ọgwụgwọ mmiri.Ka ọ dị ugbu a, iji ihe nzacha ihe nzacha nwere ike ịgbatị ndụ ma melite arụmọrụ nke akụrụngwa, belata ọrụ na ụgwọ ọrụ, ma nọgide na-arụ ọrụ nke ọma nke ụlọ ọrụ ike.
Anyị nwere ike ịnye ngwaahịa nzacha ndị metụtara ya na osisi ọkụ.
