Fumana iipesenti ezingama-45 kwiSaphulelo sakho sokuThenga
19.06.2015 - iArchean Era. Inyaniso yokuba iLanga lalibanda ngama-25% ngeli xesha lahlawulwa ngumkhusane weegesi zegreenhouse ezigqume uMhlaba, ezizezi, ikharbon diokside kunye nomphunga wamanzi. Ngenxa yokuba uMhlaba, ngelo xesha, wawugcina inxalenye enkulu yee-athomu ze-radioactive (ezenziwe kwi-supernova eyandulela ukusekwa kwenkqubo yelanga), umsebenzi we-volcanic wawuphindwe kathathu ...
Fumana ikhowudi