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The Charcoal from Ashes Found in a Cave Gave 3

Question 24

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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