Ukuhlaziywa Kwekhwalithi Yamanzi Olwandle Okuphila Izilwandle zomhlaba ziyigazi lokuphila kweplanethi yethu. Zimboza ngaphezu kuka-70% wobuso boMhlaba, zidlala indima ebalulekile ekusekeleni impilo. Izilwandle azigcini nje ngokuba umthombo omkhulu wokudla nomoya-mpilo kodwa futhi ziyasiza ekulawuleni isimo sezulu. Njengoba zibaluleke kakhulu, … Funda kabanzi
Ucwaningo Ngezimo Ze-Red Tide: Ukwembula Izimfihlakalo Ze-Algal Blooms Eziyingozi Isingeniso Ama-red tide, aziwa nangokuthi ama-algal blooms ayingozi (ama-HAB), ayisenzakalo semvelo sasolwandle esibonakala ngokwanda kwezinhlobo ezithile ze-algae ezingadala imiphumela ebalulekile yezemvelo, yezomnotho kanye neyezempilo. Igama elithi “red tide” livela ekushintsheni kombala obomvu we… Funda kabanzi
Izimangaliso Zemifula Yamakhorali Njengezindawo Zokuhlala Imifula yamakhorali, evame ukubizwa ngokuthi amahlathi emvula olwandle, ingenye yezindawo zemvelo eziyinkimbinkimbi kakhulu nezihlukahlukene eMhlabeni. Imboza ngaphansi kwe-1% yephansi lolwandle kodwa isekela cishe ama-25% azo zonke izinhlobo zasolwandle, okuyisibonelo esiyingqayizivele sokuxhumana ngaphakathi kwemvelo … Funda kabanzi
Izindlela Zokudoba Ezinobungani Nemvelo Ukudoba kuye kwasekela imiphakathi yabantu iminyaka eyizinkulungwane, kunikeza ukudla, imisebenzi, kanye namathuba okuzijabulisa emhlabeni jikelele. Kodwa-ke, ukudoba ngokweqile kanye nemikhuba engazinzile kuye kwaholela ekunciphiseni okukhulu kwenani lezinhlanzi, ukulahlekelwa kwezinto eziphilayo ezihlukahlukene, kanye nokubhujiswa kwezindawo zokuhlala. Ukushintshela kumasu okudoba anobungani nemvelo akuyona nje into ebalulekile emvelweni kodwa kuyisibopho sokuziphatha ezizukulwaneni ezizayo. … Funda kabanzi
Indlela Yokuvimbela Ukungcoliswa Kwamafutha Olwandle Ukungcoliswa kwamafutha kungenye yezinkinga zemvelo ezilimaza kakhulu ezithinta ulwandle lwethu namuhla. Kubeka izinsongo ezinkulu empilweni yasolwandle, ezindabeni zemvelo, kanye nempilo yabantu. Kusukela ekuchithekeni kwamafutha okulimazayo kuya ekugelezeni kancane kancane kwamafutha avela ezweni, imithombo yokungcoliswa kwamafutha miningi futhi iyimfihlo. Ngenhlanhla, … Funda kabanzi
Indima yePlankton Ochungechungeni Lokudla Kwasolwandle Umhlaba omkhulu noyimfihlakalo wolwandle uyikhaya lezinto eziphilayo eziningi, ngasinye sidlala indima ebalulekile ekugcineni ibhalansi yaso ebucayi. Phakathi kwalezi, i-plankton—naphezu kobukhulu bayo obuncane—ivelele njengezingxenye eziyisisekelo zezinhlelo zemvelo zasolwandle. Azigcini nje ngokuphehla iwebhu yokudla kwasolwandle kodwa … Funda kabanzi
Ibhayoloji kanye Nemvelo YamaShaka Oshaka baye bakhanga isintu iminyaka eyizinkulungwane, imizimba yabo emihle izulazula ekujuleni njengezilwane ezidla ezinye olwandle emhlabeni jikelele. Njengoba inezinhlobo ezingaphezu kuka-500, kusukela kushaki omncane omfushane kuya kushaki omkhulu womkhomo, oshaka babonisa ukuhlukahluka okuphawulekayo kwezinhlobo kanye nokuziphatha. Ukuqonda i-biology kanye nemvelo yalezi zidalwa ezimangalisayo … Funda kabanzi
Isihloko: Ukusebenzisa Ubuchwepheshe Bokufuya Izinhlanzi Zasolwandle Okusimeme Isingeniso Ukufuya izinhlanzi zasolwandle, okwaziwa nangokuthi i-mariculture, kuyindlela entsha eyinhloko yoMnotho Oluhlaza Okwesibhakabhaka. Njengoba isidingo somhlaba wonke sokudla kwasolwandle sikhuphuka, izinhlanzi zemvelo zibhekene nemiphumela emibi yokudoba ngokweqile, ukuguquka kwesimo sezulu, kanye nokungcola. Ngenxa yalokho, intuthuko kwezobuchwepheshe iqhubekisela phambili ukufuya izinhlanzi zasolwandle … Funda kabanzi
Ukuphathwa Kwemithombo Yezokudoba Okusimeme: Uhlelo Lwesikhathi Esizayo Emizamweni yokuthola ukudla kwabantu abakhulayo emhlabeni, ukuphathwa kwemithombo yezokudoba okusimeme kuvela njengendawo ebalulekile yokugxila. Ukulinganisela ukusetshenziswa kwabantu nempilo yezindawo zemvelo zasolwandle akuyona into encane, kodwa kubalulekile ukuqinisekisa ukuthi kokubili okwamanje kanye nesikhathi esizayo … Funda kabanzi
Izingozi Zezinhlekelele Ze-Tsunami Nokunciphisa Kwazo Ama-tsunami angamagagasi amakhulu olwandle avame ukubangelwa ukuzamazama komhlaba ngaphansi kwamanzi, ukudilika komhlaba, ukuqhuma kwezintaba-mlilo, noma ngisho nemithelela ye-asteroid. Lezi zinhlekelele zemvelo zibeka izingozi ezinkulu emiphakathini yasogwini ngenxa yamandla azo amakhulu kanye nokuqala kwawo okusheshayo. Ama-tsunami anamandla okubangela umonakalo omkhulu engqalasizinda, ukulahlekelwa yimpilo, kanye… Funda kabanzi