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The half-life of carbon-14 is approximately 5730 years. For carbon-14/carbon-12 ratios, the practical limit of detection is about 0.1%, or 1/1000 of the original carbon-14/carbon-12 ratio. Approximately how many half-lives does this correspond to? What's the oldest fossil that carbon-dating can be used on?A.) 1; 1000B.) 6; 60,000C.) 100; 100,000D.) 10; 60,000E.) 6; 100,000

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