Izici zenqubo: Ukwakheka komugqa, izilinda eziyisithupha. Inqubo yokukhiqiza isihlabathi esizicishayo iyasetshenziswa ekuhlanganiseni izikhungo, ukubeka izikhungo nokuthulula. Izinto ezithululwayo zithululwa ngenqubo yokuthulula evundlile, futhi amanzi angeniswa emgodini wokungena wezendlalelo eziningi, okuthuthukisa ngempumelelo ukufana kwendawo yobushushu yensimbi encibilikile ebusweni bebhokisi lesivalo. Kwinqubo yokukhiqiza, izinga lokonakala kwezimbobo kanye nezimbobo zesihlabathi ezintweni ezithululwayo liphansi, futhi ikhwalithi izinzile futhi ingalawuleka.