Multiple Choice
Radiocarbon dating is possible primarily because ____.
A) the ratio of carbon-14 to carbon-12 in the atmosphere is constant
B) carbon-14 is constantly being formed in the upper atmosphere
C) living organisms selectively use carbon-13 and carbon-12
D) organisms stop accumulating carbon-14 when they die
E) carbon 14 decays to oxygen
Correct Answer:
Verified
Correct Answer:
Verified
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