The ¹⁴C Activity of Some Ancient Peruvian Corn Was Found

question 30

Multiple Choice

The ¹⁴C activity of some ancient Peruvian corn was found to be 10 disintegrations per minute per gram of carbon. If present-day plant life shows 15 dpm/g, how old is the Peruvian corn? (The half-life of ¹⁴C is 5730 yr.)

• A) 1460 yr
• B) 1910 yr
• C) 3350 yr
• D) 3820 yr
• E) 9080 yr

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