请帮我翻译这句话,"Much of the carbon in the earth comes form things that once lived."

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• 翻译：Much of the carbon in the earth comes form things that once lived.
• 请帮我翻译这句话,"Much of the carbon in the earth comes form things that once lived."
• 请帮我翻译这句话,"Much of the carbon in the earth comes form things that once lived."
• 翻译：Much of the carbon in the earth comes form things that once lived.
• on the side
• on the side of 一道阅读的选项：“Elizabeth's house was not damaged by the flood because it was on the side of a valley."还有，flood