Charcoal Found Under a Stone at Stonehenge, England, Has a Carbon-14

question 9

Multiple Choice

Charcoal found under a stone at Stonehenge, England, has a carbon-14 activity that is 0.60 that of new wood. How old is the charcoal (The half-life of carbon-14 is 5,730 years.)

• A) Less than 5,730 yr
• B) Between 5,730 and 11,460 yr
• C) Between 11,460 and 17,190 yr
• D) More than 17,190 yr

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