★UMLANDO WOMHLABA★
Siyakwamukela Kumlando Womhlaba - I-Discovery Earth- Umama Womhlaba
Umlando woMhlaba uthinta ukukhula kweplanethi enguMhlaba kusukela ekwakhekeni kwayo kuze kube namuhla. Cishe wonke amagatsha esayensi yemvelo abe negalelo ekuqondeni izehlakalo eziyinhloko zesikhathi esidlule soMhlaba, esibonakala ngokushintsha kwe-geological njalo kanye nokuziphendukela kwemvelo.
Isilinganiso sesikhathi se-geological (GTS), njengoba sichazwa umhlangano wamazwe ngamazwe, sibonisa ubude besikhathi esikhulu kusukela ekuqaleni koMhlaba kuze kube manje, futhi izigaba zawo zibhala izehlakalo ezithile eziqondile zomlando womhlaba. (Esithombeni: U-Ga usho ukuthi "iminyaka eyizigidigidi edlule"; Ma, "iminyaka eyisigidi edlule".) Umhlaba wakhiwe cishe eminyakeni eyizigidi eziyizinkulungwane ezingu-4.54 edlule, cishe ingxenye eyodwa kwezintathu yobudala bendawo yonke, ngokunyuka kwe-solar nebula. Ukuqhuma kwentaba-mlilo cishe kwadala umkhathi wokuqala kwase kuba ulwandle, kodwa umkhathi wokuqala wawungenawo umoya-mpilo. Ingxenye enkulu yoMhlaba yayincibilikile ngenxa yokushayisana njalo nezinye izidumbu okwaholela ekuqhumeni kwentaba-mlilo okwedlulele. Ngenkathi uMhlaba usesigabeni sawo sokuqala (Early Earth), ukungqubuzana komthelela omkhulu nomzimba olingana neplanethi okuthiwa u-Theia kucatshangwa ukuthi wakhe iNyanga. Ngokuhamba kwesikhathi, uMhlaba waphola, okubangela ukwakheka koqweqwe oluqinile, futhi kwavumela amanzi awuketshezi phezu komhlaba.
I-Hadean eon imelela isikhathi esingaphambi kwerekhodi elithembekile (insalela) yokuphila; yaqala ngokwakhiwa kweplanethi futhi yaphela eminyakeni eyizigidi eziyizinkulungwane ezingu-4.0 edlule. I-Archean ne-Proterozoic eons elandelayo yakhiqiza ukuqala kokuphila eMhlabeni kanye nokuziphendukela kwemvelo kwayo kokuqala. I-eon elandelayo iPhanerozoic, ihlukaniswe yaba izinkathi ezintathu: iPalaeozoic, inkathi yama-arthropods, izinhlanzi, nempilo yokuqala emhlabeni; iMesozoic, eyahlanganisa ukukhuphuka, ukubusa, kanye nokuqothulwa okuwumvuthwandaba kwama-dinosaurs angewona awezinyoni; kanye ne-Cenozoic, eyabona ukwanda kwezilwane ezincelisayo. Abantu ababonakalayo bavela cishe eminyakeni eyizigidi ezi-2 edlule, isikhathi esincane esishabalalayo esikalini sokwakheka komhlaba.
Ukusekelwa kolimi: IsiNgisi, iSpanishi, isiPutukezi, isiFulentshi, isiMalay esisekelwe, isiDashi, isiRashiya, isiNtaliyane, isi-Arabhu, isiHindi, isiTurkey
Izici:
⚫ Umlando Womhlaba
⚫ Ukutholwa Nokuhlola Umhlaba
⚫ Ukusetha ikhasi lokufunda
⚫ Imodi yesikrini esigcwele
⚫ Shintsha usayizi wefonti, ingemuva
⚫ Kulula kakhulu, kulula ukuyisebenzisa
Uma uthanda uhlelo lokusebenza, sinikeze izinkanyezi ezi-5.
Jabulela ubumnandi!
Kubuyekezwe ngo-
Nov 30, 2023