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Reaper534
Group Title
An isotope of carbon that is radioactive is _________.
A. carbon12
B. carbon13
C. carbon14
D. carbon15
 one year ago
 one year ago
Reaper534 Group Title
An isotope of carbon that is radioactive is _________. A. carbon12 B. carbon13 C. carbon14 D. carbon15
 one year ago
 one year ago

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By applying the law of superposition, _______________ dates can be determined. A. relative B. absolute C. radiometric D. isotope
 one year ago

Reaper534 Group TitleBest ResponseYou've already chosen the best response.0
Fishes were first abundant during the ... A. Precambrian B. Paleozoic C. Mesozoic D. Cenozoic i out c it was wrong
 one year ago
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