Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Duniya ta kasance mai sanyi a lokacin farkon Cambrian, mai yiwuwa saboda tsohuwar nahiyar Gondwana ta rufe Kudancin Kudancin kuma ta yanke raƙuman ruwa na polar. Koyaya, matsakaicin yanayin zafi ya kasance 7 digiri Celsius sama da na yau. Akwai yiwuwar kankara na kankara da kuma jerin glaciations, kamar yadda duniya ke ci gaba da farfadowa daga farkon Snowball Earth. Ya zama mafi zafi zuwa ƙarshen lokacin; glaciers sun koma baya kuma daga bisani sun ɓace, kuma matakan teku sun tashi sosai. Wannan yanayin zai ci gaba zuwa lokacin Ordovician.  Tambaya: A wane lokaci ne aka ci gaba da hawan tekun?
Ordovician