The Ratio of the Abundance of Carbon-14 to Carbon-12 in a Sample

question 13

Multiple Choice

The ratio of the abundance of carbon-14 to carbon-12 in a sample of dead wood is one quarter the ratio for living wood. If the half-life of carbon-14 is 5730 years, which one of the following expressions determines how many years ago the wood died?

• A)2 × 5730
• B)4 × 5730
• C)0.75 × 5730
• D)0.50 × 5730
• E)0.25 × 5730

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