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Geography, 10.10.2019 02:00, brandon1748
Do the math scientists estimate that earth is 4.54 billion years old. chemical evidence of life appears in the fossil record 3.8 billion years ago. what percentage of earth's history was without life? write a formula for the calculation using variables you define. then use your formula to find the answer
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Answers: 1
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Do the math scientists estimate that earth is 4.54 billion years old. chemical evidence of life appe...
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