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Scientists estimate earth's age to be 4.6 billion years. samarium has a half-life of approximately 106 billion years. from the present date, approximately how many more years must pass before a sample of samarium that was created at the beginning of earth's history contains 50 percent of the original parent material? 1 billion 10 billion 100 billion 1,000 billion
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Scientists estimate earth's age to be 4.6 billion years. samarium has a half-life of approximately 1...
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