A Sample of Wood Has Been Recovered by an Archaeologist

question 26

Multiple Choice

A sample of wood has been recovered by an archaeologist.The sample is sent to a laboratory,where it is determined that the activity of the sample is 0.144 Bq/g.By comparing this activity with the activity of living organic matter,which is 0.230 Bq/g,the scientist determines how old the wood sample is,or more precisely,when the tree that the sample came from died.Carbon-14 has a half-life of 5730 years.If the activity of living matter has been constant over time,how old is the sample of wood?

• A)3870 years
• B)4250 years
• C)4590 years
• D)2630 years
• E)2940 years

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