In carbon-14 dating,
A) the radioactivity of carbon is artificially induced.
B) the radioactivity of carbon occurs naturally.
C) radioactive carbon is added to the sample to be dated.
D) none of the above
Correct Answer:
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A)silicon-30.
B)phosphorus-29.
C)sulfur-30.
D)sulfur-29.
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A)brain scans.
B)bone
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