An Ancient Building Was Known to Have Been Built 3

question 7

Multiple Choice

An ancient building was known to have been built 3 000 years ago.Approximately what proportion of Carbon-14 atoms are yet in the building's wooden framing compared to the number which were present at the time of its construction? (half life of ¹⁴C = 5 730 years)

• A)0.425
• B)0.500
• C)0.517
• D)0.696

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