Ka duba nassin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar nassin: Passage: Duniya ta kasance mai sanyi a lokacin farkon Cambrian, mai yiwuwa saboda tsohuwar nahiyar Gondwana da ke rufe Kudancin Kudancin da kuma yanke raƙuman ruwa na teku. Koyaya, matsakaicin yanayin zafi ya kasance 7 digiri Celsius fiye da na yau. Wataƙila akwai gilashin kankara na kankara da jerin glaciations, kamar yadda duniya ke ci gaba da murmurewa daga farkon Snowball Earth. Ya zama mafi zafi zuwa ƙarshen lokacin; glaciers sun koma baya kuma daga ƙarshe sun ɓace, kuma matakan teku sun tashi sosai. Wannan yanayin zai ci gaba zuwa zamanin Ordovician. Tambaya: Wace lokaci ya ga matakan teku suna ci gaba da tashi?
Ordovician