0 Question: How long has life been upon earth? Keywords: Royal Society of Chemistry: Find out more about: earth life Asked by Sabrina-Ross!!!!!!!! to Anaïs, Peter, Shreesha on 19 Mar 2015.
Peter Maskell answered on 19 Mar 2015:
The oldest known fossils are approximately 3.5 billion years but possibly upto 4 billion years.
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