The Charcoal from Ashes Found in a Cave Gave 3

question 66

Multiple Choice

The charcoal from ashes found in a cave gave 3.34 ¹⁴C counts per gram per minute.Wood from the outer portion of a growing tree gives a comparable count of 16.0.The half-life of ¹⁴C is 5700 years.How old are the ashes?

• A)8.93 × 10³ yr
• B)6.87 × 10³ yr
• C)1.29 × 10⁴ yr
• D)1.93 × 10⁴ yr
• E)1.90 × 10⁴ yr

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