Isilivere ikwakhankanyiwe kwibhayibhile engcwele kunye namatye anqabileyo ahlukeneyo kunye nezinye izinto ezixabisekileyo ezikhoyo kulo mhlaba. Kule mihla, isilivere isetyenziselwa iinjongo ezahlukeneyo nakuzo zonke iintlobo zentsimi nokuba zihombiso zayo okanye isayensi kunye neteknoloji. Isilivere ifumana ukusetyenziswa kwayo kulo lonke uhlobo lwentsimi namhlanje. Isilivere yayisetyenziswa ukutyhubela izizukulwana ezininzi zookhokho bethu yaye isasetyenziswa ngabantu abahlala ehlabathini namhlanje. Imihombiso yesilivere okanye ubucwebe besilivere bezisoloko zikwifashoni kwaye zamkelwa kwihlabathi liphela. Inkangeleko yomntu igqitywa ngokwempahla ayinxibileyo, inkangeleko yeenwele zakhe, nezihombiso zobuso bakhe. Ngaphandle kwezi zinto, izincedisi ziyibhonasi kwinkangeleko yomntu. Izixhobo ezifana nezacholo zichaphazela kakhulu ubuntu bomntu ingakumbi xa umntu engumfazi. Kule mihla, ubucwebe buye baba yinxalenye ebaluleke kakhulu kubuntu kunye nesinxibo somntu kwaye kungoko abantu abaninzi benxiba ezinye okanye ezinye iintlobo zobucwebe kule mihla. Uninzi lwabantu lukhetha ubucwebe besilivere kuba buxabiso eliphantsi kunegolide kwaye lukhangeleka lukhethekile xa luthelekiswa negolide okanye nayiphi na enye intsimbi. Ubucwebe besilivere buhlala ixesha elide kunalo naluphi na uhlobo lobucwebe kwaye ngenxa yoko abantu bakhetha ukuthenga izacholo zesilivere kunezinye iintlobo zobucwebe ezifuna imali eninzi. Kukho ezinye iingenelo ezahlukeneyo zobucwebe besilivere ezibandakanya ukucocwa kwezacholo. Ukucoca ubucwebe obenziwe ngegolide okanye iplatinam ngumsebenzi obuhlungu kwaye ngenxa yoko xa kuthelekiswa nolu didi lwezacholo, ukucocwa kwezacholo zesilivere ngumsebenzi olula kuye nabani na. Umntu unokugcina nje ubucwebe bakhe besilivere kwitanki egcwele amanzi kunye ne-agent yokucoca. Ngokuhamba kwexesha, i-arhente yokucoca isusa yonke inkunkuma yeekhemikhali ukusuka kumphezulu wobucwebe besilivere kwaye imihlobiso ibe yinto entsha. Ubucwebe besilivere buye baduma kakhulu phakathi kwabantu kule mihla kwaye bakhetha ngaphezu kwalo naluphi na uhlobo lobucwebe ngoku.
