Iplanethi yethu yayinomzuzwana xa yaqala ukuvela kwaye, ukusukela ngoko, ayikayeki ukutshintsha. Njengoko sisazi, kukho izinto ezahlukeneyo ezenza iplanethi yethu ukuba iqhubeke ngokuhlaziya kunye notshintsho. Kusenokwenzeka ukuba uzibuze amaxesha amaninzi indlela owawenziwe ngayo umhlaba ukusukela ekuqaleni. Ukuba imvelaphi yayo yonke into yayiyi-Big Bang, zazinokwenzeka njani iimeko eziyimfuneko zokwenziwa kweplanethi ekuhlalwa kuyo?
Kweli nqaku siza kunika iinkcukacha kuyo yonke into oyidingayo malunga nokuba wenziwa njani uMhlaba kunye nokuzivelela kwayo bekukho kwizigidi zeminyaka ezidlulileyo ukuza kuthi ga ngoku.
Uthuli lwangaphakathi
Okokuqala, kufuneka siqaphele ukuba ukubalwa kwamaxesha kubhekisa kwixesha lejoloji. Oko kukuthi, iyunithi yokulinganisa ikumawaka okanye kwizigidi zeminyaka. Kwiplanethi enguMhlaba, iminyaka eli-100, yeyokuba umntu okwimeko entle uhlala ehlala ixesha elingakanani, ayonto. Ayikokuqhwanyaza kancinci kwako konke oko kuphila. Zombini zokwenza kunye ne-dynamics kunye ne-evolution, iinkqubo ze-geological kufuneka zibalwe njengento ecothayo kakhulu kunye nexesha lesikali esahlukileyo kulomntu.
Imvelaphi yeplanethi yoMhlaba ivela kwi-nebula yohlobo lweprotosolar. Le nebula yabangela ukwenziwa kweplanethi malunga ne-4600 yezigidigidi zeminyaka eyadlulayo. Xa iplanethi iqala ukubumba, ayisiyonto ingaphezulu kwesixa esikhulu sothuli esinoxinano oluncinci. Kwakungekho nto, kwakungekho moya, akukho bomi, akukho nto konke konke. Into ebangele ukuba kubekho ubomi kwiplanethi yethu kukuba sikumgama ogqibeleleyo ukusuka elangeni. Ukuba besisondele, iLanga belizakuphela ligqatsa yonke into. Kwelinye icala, ukude kuya kufana nokuphila ngokupheleleyo kwixesha lomkhenkce.
Ilifu legesi elikhankanywe ngasentla yile nto ibangele amasuntswana othuli awayejikeleza yonke inkqubo yelanga. Amasuntswana ayejiya kancinci kancinci kwinto esiyaziyo namhlanje njenge-Eagle Nebula ebekwe kwiMilky Way.
Ubunzima bamasuntswana othuli ngokuthe ngcembe ancipha kwaye iplanethi yenziwa ngokuthe ngcembe.
Wenziwa njani umhlaba inyathelo ngenyathelo
Njengoko iJupiter kunye neSaturn namhlanje, nathi sasinomthamo omkhulu wegesi nothuli. Njengoko ukungqubana kwamasuntswana kwakhula kancinci kancinci kwaye uxinano lwayo lwanda, yaba sisimo esomeleleyo. Oku kukhokelele kuqweqwe loMhlaba kunye nokwakheka kwawo onke amanye amacandelo oMhlaba angaphakathi. Siyakhumbula ukuba umbindi womhlaba awuqinanga ngokupheleleyo, kuba yenziwe ngobunzima obuqinileyo bentsimbi kunye nesinyithi esityhidiweyo.
Olunye uqweqwe lwaluthatha izinto ezithile ezinje ngale siyaziyo namhlanje enkosi kwithiyori yetectonics. Emva phayaa, iplanethi yonke yayinesixholoxholo. Bekusoloko kusithiwa isiphithiphithi yeyona nto ibangela ukwakhiwa kweziseko ezizinzileyo. La maxesha zonke iintaba-mlilo eMhlabeni bezinomsebenzi owomeleleyo. Lo msebenzi yeyona nto ibangele ukuba ukukhutshwa kube kukhulu kangangokuba bekufanele ukuba kwenziwe into esiyaziyo njengomoya woMhlaba. Ukwakhiwa kweatmosfera akukaze kufane. Ihlala iguqulwa ngokuhamba kwexesha. Okwangoku, ngesantya esikhawulezayo kunesiqhelo, ukwenziwa kwayo kuyatshintsha ngenxa yokukhutshwa kwerhasi yabantu.
Iintaba-mlilo zizezona zinto ziphambili ekubunjweni komhlaba, ukongeza kumawakawaka eziqithi, iiarchipelagos, njl.
Ukuyilwa komoya
Njengoko sinokuqikelela, iatmosfere ekhusela imitha yelanga, yenza umaleko weozone kwaye ivelise imozulu esaziyo ukuba ayenzanga ngesiquphe. SZininzi izinto ezikhutshwayo ezikhutshwe kukuqhuma okungapheliyo kwazo zonke iintaba-mlilo. Ngaphezulu kwamawakawaka eminyaka, uthuli olwakhutshwa ziintaba-mlilo lwadityaniswa lwenza umoya wokuqala.
Uxinzelelo kunye nobukho begesi bezitshintsha kunye nophuhliso lweplanethi. Ukuya kuthi ga kwinqanaba lokuba namhlanje siyazi ngqo ingxinano yeegesi eziyenzileyo. Umoya wokuqala wokuqala ukwenza i-hydrogen kunye ne-helium. Ezi gesi zezona zininzi kakhulu esibhakabhakeni. Kwelinye icala, kwisigaba sesibini sokuphuhliswa komoya esinawo isibhakabhaka semeteor esibethe uMhlaba. Ngethuba leeshawari yemeteor, umsebenzi wentaba-mlilo waqhubekeka ngakumbi.
Iigesi ezikhutshwe kukuqhushumba kwentaba-mlilo zaziwa njengomoya wesibini. Oku ikakhulu ngumphunga wamanzi kunye nekhabhon dayoksayidi. Iintaba-mlilo zazikhupha iigesi ezininzi ezinesalfure, ngenxa yoko sasinemozulu enetyhefu ekungekho mntu unokusinda kuyo. Xa zonke iigesi ezazigalelwe kulo moya wamandulo zajijisana, imvula yaveliswa okokuqala.
Ukusuka apho, amanzi aqala ukunika ubomi kwiintsholongwane zokuqala ze-photosynthetic. Iintsholongwane ze-photosynthetic zezona bezisongeza ioksijini kwimoya enetyhefu ebesinayo.
Ngeoksijini eyaqala ukunyibilika kwiilwandlekazi nakwiilwandlekazi, ubomi basemanzini babunokubakho. Zonke ezinye izinto eziguqukayo kunye nokudalwa kweentlobo ezintsha zivela kwindalo nakwiminqamlezo yemfuza ebinayo ubomi baselwandle. Inqanaba lokugqibela lokwakheka kweatmosfera lelona livelise ukwakheka okwangoku esinama-78% e-nitrogen kunye ne-21% yeoksijini phantse.
I-meteor shower esichazwe ngumntu wonke ibaluleke kakhulu ekwakheni umhlaba. Ngombulelo kuwo, umoya onokuthi uguqulwe kwaye umsebenzi wentaba-mlilo kangangokuba wanceda ekwakheni iziqithi, iiarchipelagos, umgangatho ongaphezulu wolwandle kunye nokwakha kwakhona iatmosfera.
Ndiyathemba ukuba olu lwazi luyakunceda ukuba wazi ukuba uMhlaba wenziwe njani.