Umbuzo othi Umsuka Wamanzi Emhlabeni kubalulekile, kuyindaba eyinkimbinkimbi ukuyichaza, njengoba uMhlaba ulahlekelwe yibo bonke ubufakazi bokubunjwa kwawo, ngoba uyiplanethi esebenzayo. Kulesi sihloko sikubonisa konke odinga ukukwazi mayelana neMvelaphi Yamanzi Emhlabeni!
Uyini Umsuka Wamanzi Emhlabeni?
Amanzi aphezu koMhlaba ayisici esingavamile kuwo wonke amanye amaplanethi ahlolisisiwe, ngenxa yokubaluleka kwamanzi ukusekela ukuphila, umbuzo we Umsuka Wamanzi emhlabeni kubaluleke kakhulu, inkinga enkulu uma uphenya lo mbuzo ukuthi uMhlaba ulahlekelwe yizo zonke izinsalela zokubunjwa kwawo, njengoba uyiplanethi esebenzayo.
Besilokhu sizibuza njalo Adalwa kanjani amanzi?, ngezikhathi ezithile kucatshangwa ukuthi amanzi afika eMhlabeni egibele i-asteroids, umkhiqizo wezinsalela zokuqondanisa kwesimiso sonozungezilanga, kucatshangwa ukuthi lawa maconsi awela eMhlabeni ngenxa yokuqhuma kwamabhomu okungapheli okwathatha izigidi ezingamashumi amabili zeminyaka. baze babunjwa Izilwandle nezilwandle.
Amanzi anamuhla eMhlabeni abekhona kusukela ukwakheka kwawo kungavamile futhi akufani nhlobo, okokuqala, ngokucwaninga kwamanye amaplanethi anamadwala angenawo amanzi angaphezulu futhi okwesibili, ngombono womthelela omkhulu phakathi kwe-proto-Earth kanye ne-Mars- i-embryo yeplanethi engusayizi, eyakha iNyanga.
Isenzakalo esiyinhlekelele esinjalo kufanele sihwamuke noma imaphi amanzi akhona, sishiye uMhlaba womile, ngemva kwalesi senzakalo sinezinketho ezimbili zokuchaza ubukhona bamanzi eMhlabeni, amanzi abuya kamuva, ngemva kwenhlekelele, ngesimo seqhwa noma ama-asteroid acebile amanzi noma umthelela omkhulu wawungemkhulu ngokwanele ukuhwamulisa wonke amanzi aseMhlabeni.
Nakuba uMhlaba kanye neVenus kungabonakala njengamawele, izinguquko zabo ze geological kanye nesimo sezulu esikhathini esidlule zazihluke kakhulu, okuholela emkhathini wesimanje weVenus ekucindezelweni kwamabha angama-92 kuze kufike ku-470 ° C, ngokungafani nezinga lokushisa elipholile. kanye nokucindezela kwebha engu-1 endaweni yomhlaba.
Kodwa-ke, ukusebenza kwentaba-mlilo kanye nokuvela kwegesi kuzwakala kancane kuVenus kunaseMhlabeni, ngenxa yokuthi akukho ukunyakaza kwamapuleti kuyo, ukushisa kwe-convection ku-Venus kuhilela ukuphindaphinda okuncane kakhulu kokuguquguquka kwengubo.
Lokhu kusho ukuthi ukuvela komkhathi weVenus kulula kakhulu ukukuqonda nokwenza izinguquko zejoloji, futhi, ngenxa yokusondelana kwazo, uMhlaba kanye neVenus kumele ngabe zavuma uhlobo olufanayo lwempahla kuwo wonke umlando wawo, bonke lobu buso obuvumelanayo benza iVenus indawo enhle kakhulu yokufunda ngokuvela kwamaplanethi asemhlabeni.
Lisebenzisa ukulingiswa kwezinombolo komthelela wezinhlobo ezahlukene zama-asteroid aqukethe amanani ahlukahlukene amanzi, ithimba lithole ukuthi ama-asteroid anothe ngamanzi angqubuzana neVenus futhi akhiphe amanzi awo njengomhwamuko awukwazi ukuchaza ukwakheka komkhathi weVenus njengoba unjalo.
Lokhu kusho ukuthi impahla ye-asteroid eyashayisa iVenus futhi ngaleyo ndlela Umhlaba, ngemva komthelela omkhulu, kwakudingeka wome, okuvimbela ukugcwalisa uMhlaba ngamanzi usebenzisa ama-asteroids, ngenxa yalokho amanzi ayengeke Anyamalale ngemva komthelela omkhulu, okusho ukuthi, cishe, kwakujule kakhulu eMhlabeni.
Lo mcabango unokungqubuzana okujulile nokuhlala koMhlaba wasendulo, iVenus, kanye neMars, njengoba uphakamisa ukuthi amaplanethi azakhela cishe amanzi aphelele futhi awasaphaze ngokuhamba kwesikhathi, njengoba iMars incane kakhulu, imoshe yonke indawo. amanzi ayo ngenkathi ukuphila kwavela emhlabeni.
KuVenus, le miphumela isikhanyisela okwengeziwe ngomsebenzi wokutadisha izilwandle zasemanzini endaweni engaphezulu kweplanethi futhi isize ukunciphisa inani eliphakeme lamanzi elingalindelwa kuVenus, lolu lwazi lungasiza ohambweni lwasemkhathini oluzayo oluya eVenus.
Kucatshangelwa izimo ezintathu ukuze zichaze Umsuka Wamanzi umhlaba:
Isigaba sokuqala
Esimweni sokuqala, ama-molecule amanzi ngabe avikelwe emisebeni yelanga ngaphakathi "othulini" lwefu lokuqala, ngesikhathi sokubunjwa kwe-Solar System, lapho uthuli luvunywa ukwenza ama-planetoids, amanzi ahlala evikelekile ngaphakathi.
Amaplanethi abe eseshwabana njengoba ekhula, okwaphoqa amanzi ukuba aphumele ngaphandle, kancane njengesipontshi esigcwele amanzi esikhanywayo, segesi efana ne-carbon dioxide ekhishwa ngokuhambisana, okwenza umkhathi.
Emhlabeni, izimo zokushisa nokucindezela kwabangela ukuba amanzi adlule esesimweni esiwuketshezi futhi ngenxa yalokho, izilwandle. Bavela, bevikelekile emisebeni yomoya, amanzi akwazile ukuzigcina kuze kube namuhla.
Ku-Venus, izinga lokushisa eliphezulu laligcina amanzi esesimweni somhwamuko: imisebe yabe isiqhekeza ama-molecule amanzi emkhathini ongaphezulu futhi ekugcineni i-hydrogen yaxoshwa emanzini, namuhla, amanzi cishe awekho kuVenus.
Isimo sesibili
Esinye isimo sihilela ama-asteroids kanye nezinkanyezi ezinomsila: zivela ezindaweni ezikude kakhulu ze-Solar System, ezicebile ngokunembile emanzini, nokho, ekuqaleni komlando wesimiso sonozungezilanga, imithelela yayiminingi kakhulu ngoba inani elikhulu lemizimba. iqhubeke nokuzungezisa ngaphakathi kwediski ye-protoplanetary Ukuhamba Kweplanethi, lokhu kungaletha inani elibalulekile lamanzi eMhlabeni, ukuwaletha kusukela ezindaweni ezikude ze-Solar System.
Ukubuka namuhla kuvame ukukhombisa ukuthi zombili lezi zimo zibambe iqhaza ekuchazeni inani lamanje lamanzi awuketshezi emhlabeni.
isigaba sesithathu
Eminyakeni yamuva, isimo sesithathu siye savela, kubonakala sengathi kungenzeka ukuthutha amanzi enkanyezini, ezinhlelweni zamaplanethi ezingenakuphikiswa, empeleni, ukubonwa kwama-exoplanets kuye kwaholela ekutholakaleni kwenani elikhulu lama-giants gas atholakala eduze kwenkanyezi yawo, endaweni ebekelwe njalo amaplanethi asemhlabeni.
Ngakho-ke, kwakudingeka ukucabanga ukufuduka okucatshangelwayo kwamaplanethi ekuqaleni komlando walezi zinhlelo zamaplanethi, iziqhwaga zegesi zaziyobe zakha kude nenkanyezi yazo, njengasesimisweni sonozungezilanga, kodwa zase zithuthela enkanyezini yazo ngenxa yokuxhumana nazo. i-disc ye-powder esele.
Lena indlela enhle yokuletha amanzi amaningi asuka ezindaweni ezikude ukuya ezindaweni eziseduze nezinkanyezi, inqubo ifana neyenkanyezi enomsila, kodwa ngezinga elikhulu kakhulu njengoba ihlanganisa amaplanethi wonke! Uma sicabanga ukuthi ama-gas giants agcina elahlekelwe yi-hydrogen ne-helium ngenxa yemisebe yenkanyezi, angase abe amaplanethi-ocean angempela, ukuba khona kwamazwekazi bekungeke kwenzeke lapho ngoba ukujula kwamanzi bekungaba kusukela emakhulwini ambalwa kuya ezinkulungwaneni. amakhilomitha.
Imibono Yemvelaphi Yamanzi Emhlabeni
Ososayensi bebelokhu bephikisana ngale ndaba ithiyori yamanzi nokuthi iplanethi yethu yavela kanjani isikhathi eside, ochwepheshe abaningi banamathela embonweni wokuthi amanzi alethwa eMhlabeni eminyakeni engaba yizigidi eziyizinkulungwane ezingu-3.600 edlule, ngisho nasesiteji sokwakhiwa okusebenzayo kweplanethi, lapho izinkulungwane zabantu zihlasela ngokuqhubekayo. , wona ama-asteroid amakhulu namancane kanye nenkanyezi enomsila.
Ososayensi bakholelwa ukuthi amanye alawa ma-asteroids ayemakhulu impela futhi equkethe inani elifanele lamanzi ngesimo somhwamuko, uketshezi noma iqhwa, manje sekuvele inkolelo-mbono entsha, ochwepheshe baseJapan basikisela ukuthi cishe wonke amanzi asemhlabeni avela lapha hhayi Kwabakhona. alethwe emkhathini.
Izazi ze-Geologists ezivela eTokyo Institute of Technology zithi ngesikhathi se- ukudalwa komhlaba, izingqimba ezinkulu ze-hydrogen zazikhona ku- ukwakheka komhlaba, bangena ekuphenduleni kwamakhemikhali ne-oxygen ekhona engutsheni Yomhlaba, ngenxa yalokho amanzi akhiwa emhlabeni ngobuningi obukhulu.
Izazi zesayensi yokwakheka komhlaba zicabangela ukuthi ngemva nje kokuba iplanethi yakhiwe, yayishisa kakhulu futhi yomile, ngokombono, izigidi zezinkanyezi ezinomsila nama-asteroids acebile zahlasela uMhlaba eminyakeni eminingi edlule, okudalula nakakhulu ukuthi kungani ulwandle lwavela ngemva kokuqeda ukuhleleka kweplanethi. .
