Lezi zinhlayiya zamanzi emhlabeni namuhla sezineminyaka engamakhulu ezigidi.Kungenzeka ukuthi siphuza umchamo wama-dinosaur.Amanzi asemhlabeni ngeke abonakale noma anyamalale ngaphandle kwesizathu.
Enye incwadi ethi, The Future of Water: A Starting Look Ahead, eyabhalwa uSteve Maxwell noScott Yates, iveza ngokucacile ukuthi izibankwakazi zaziphuza amanzi afanayo nathi.Amandla ezinsalela azonyamalala ngemva kokushiswa, kodwa amanzi angaphinde asetshenziswe ngokuqhubekayo.
Amanzi amaningi emhlabeni wethu angamanzi anosawoti, agcinwe olwandle.Cishe isigamu samanzi ahlanzekile asele akhona ngendlela yezinguzunga zeqhwa, enye ingxenye isesimweni samanzi angaphansi komhlaba, futhi ingxenye encane kakhulu igcinwa emachibini, emifuleni, enhlabathini nasemkhathini.Ngaphezu kwalokho, le ngxenye encane kuphela engasetshenziswa izidalwa eziphila emhlabeni.
Amanzi asemachibini ahlukene emhlabeni angageleza ngokuqhubekayo.Ngokwesibonelo, amanzi omfula ageleza echibini, futhi amanzi echibini angangena emhlabathini.Ngamafuphi, amanzi akula machibi angajikeleza ngezikhathi ezithile.Ngamanye amazwi, amanzi lawo lezo zilwane zasemhlabeni eziwaphuzayo eziswini azogcina ekhishelwe emvelweni futhi.Ngakho-ke uphuza amanzi nama-dinosaur nawo awaphuzile.Kuhle futhi ukucabanga ngakho.Ngaphambi kokuvela kwabantu, amanzi emhlabeni ayesejikeleze emzimbeni wezibankwakazi izikhathi eziningana.
Amanzi esiwaphuzayo
Ungakanani umchamo we-dinosaur?
Kuyiqiniso ukuthi abantu badla amanzi amaningi nsuku zonke, kodwa uma kuqhathaniswa nombusi wangaphambili womhlaba - izibankwakazi, umthelela wethu emanzini emhlabeni emkhathini kanye nesikhathi mancane amathuba okuba ufinyelele ezingeni ama-dinosaurs ake afinyelela kulo.Inkathi ye-Mesozoic, eyaziwa ngokuthi iminyaka yama-dinosaurs, yathatha iminyaka eyizigidi ezingu-186, futhi ithalenta lasendulo lenkawu lavela eminyakeni eyizigidi eziyisikhombisa edlule.Ngokombono, ngaphambi kokuvela kwabantu, amanzi emhlabeni ayesejikeleze emzimbeni wama-dinosaurs izikhathi eziningana.
Ingxoxo mayelana nokusetshenziswa kabusha kwamanzi okuphuza kanye namanzi ngokuvamile ihilela umjikelezo wamanzi.Izintatheli nososayensi bathanda ukudweba imidwebo elula kakhulu noma engalungile ukuveza inqubo yomjikelezo wamanzi.Umqondo oyinhloko ukuthi amanzi asemhlabeni namuhla afana nalawo ama-dinosaur.
Inani elikhulu lezinqubo zebhayoloji, zomzimba kanye namakhemikhali ziyoqhubeka kudala amanzi amasha.Ngakho-ke, amanzi angabonakala njengavuselelwe ngokuqhubekayo.
Isibonelo, ingilazi yamanzi edeskini lakho ihlale i-ionized futhi ibola ibe ama-hydrogen ion nama-hydroxide ions.Uma amanzi eba ionic, ayiseyona i-molecule yamanzi.
Nokho, la ma-ion ekugcineni azokhiqiza ama-molecule amasha amanzi.Uma i-molecule yamanzi ivuselelwa ngokushesha ngemva kokubola, singasho futhi ukuthi kusengamanzi afanayo.
Ngakho-ke ukuthi siphuza umchamo we-dinosaur noma cha kuncike ekuqondeni kwakho.Kungashiwo ukuthi kade kwadakwa noma cha.
Isikhathi sokuthumela: Mar-03-2023
