how life began on the earth 中的名词性从句 并划分成分 急,在线等一定要划分句子成分

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: 1 What is even more important is that as the earth cooled down, water began to appear on its surface. what Ӿ, Ӿ : what is even more important ; is ϵ, that as the earth cooled down, water began to appear on its surface. DZӾ 2 No one knows exactly how the earth began, as it happened so long ago. DZӾ, ʡ that , Ӿ䲿: how the earth began , as it happened so long ago. : No one , ν knows ? ʹ, ........