Uyini uhlelo lwezixhobo zamakhorali olukhulu kunawo wonke emhlabeni?
Context:IGreat Barrier Reef iyisistimu yamakhorali enkulu kunazo zonke emhlabeni, eyakhiwe ngamakhorali angaphezu kuka-2 900 neziqhingi ezingama-900 ezihamba ngaphezu kwamakhilomitha angama-2 300 endaweni engamakhilomitha-skwele angama-344,400. Lolu dwala lutholakala oLwandle Lwamakhorali, ogwini lwaseQueensland, eAustralia, luhlukaniswe nolwandle umsele ongamakhilomitha angu-100 ububanzi kwezinye izindawo futhi ongaphezu kwamamitha angu-200 ukujula. IGreat Barrier Reef ibonakala emkhathini futhi iyisakhiwo esikhulu kunazo zonke emhlabeni esakhiwe izinto eziphilayo. Lesi sakhiwo se - reef sakhiwe yizigidigidi zezinto eziphilayo ezincane, ezaziwa ngokuthi ama - coral polyps. Isekela izinhlobo eziningi zezinto eziphilayo futhi yakhethwa njengeNdawo Yamagugu Omhlaba ngo-1981. Ngo-1997 i-CNN yalisho ngokuthi lingesinye sezimangaliso eziyisikhombisa zemvelo emhlabeni. Izindawo zase-Australia zeGugu Lomhlaba ziyifake ohlwini lwazo ngo-2007. I-Queensland National Trust yamqamba ngokuthi uyisithonjana sesifundazwe saseQueensland ngo-2006.  Ingxenye enkulu yaleli gquma ivikelwe yiGreat Barrier Reef Marine Park, esiza ekunciphiseni umthelela wokusetshenziswa komuntu, njengokudoba nezokuvakasha. Okunye ukucindezela kwemvelo emthonjeni nasesimweni sawo sezinto eziphilayo kuhlanganisa ukuchitheka kokungcola okwenziwe umuntu, ukuguquka kwesimo sezulu okuhambisana nokukhishwa kwamakhorali ngobuningi, ukulahlwa kodaka lokudonsa kanye nokuqubuka kwenani labantu bezinkanyezi zasolwandle. Ngokusho kocwaningo olushicilelwe ngo-Okthoba 2012 yi-Proceedings of the National Academy of Sciences, ugwadule selulahlekelwe ngaphezu kwengxenye yesembozo salo samakhorali kusukela ngo-1985, okutholakele okuqinisekiswe kabusha ngocwaningo lwango-2020 olutholile ukuthi ngaphezu kwengxenye yesembozo samakhorali wegwadule selulahlekile phakathi kuka-1995 no-2017, nemiphumela yomcimbi wokukhishwa kombala obanzi ngo-2020 ongakabalwa.  Sekuyisikhathi eside iGreat Barrier Reef yaziwa futhi isetshenziswa ama-Aboriginal ase-Australia nabantu baseTorres Strait Islander, futhi iyingxenye ebalulekile yamasiko namaqembu endawo. Umhlathi uyindawo ethandwa kakhulu izivakashi, ikakhulukazi eziQhingini zaseWhitsunday nasezifundeni zaseCairns. Ezokuvakasha ziwumsebenzi obalulekile kwezomnotho esifundeni, ezikhiqiza imali engaphezu kwama-AUD$3 billion ngonyaka. NgoNovemba 2014, i-Google yethule i-Google Underwater Street View ku-3D yeGreat Barrier Reef.
I-Great Barrier Reef iyisixuku esikhulu kunazo zonke sezixhobo zamakhorali emhlabeni futhi itholakala oLwandle Lwamakhorali, ogwini lwaseQueensland, e-Australia. IGreat Barrier Reef iqukethe iziqhingi ezingaphezu kuka-900 kanye namakhorali angama-2,900 ahlukene ahamba ngaphezu kwamakhilomitha angama-2,300 endaweni engamakhilomitha-skwele angama-344,400. IGreat Barrier Reef ibonakala emkhathini futhi iyisakhiwo esikhulu kunazo zonke emhlabeni esakhiwe izinto eziphilayo. Lesi sakhiwo se - reef sakhiwe yizigidigidi zezinto eziphilayo ezincane, ezaziwa ngokuthi ama - coral polyps. Ngo-1981 iGreat Barrier Reef yakhethwa njengengxenye yeGugu Lomhlaba.