Biology, 12.07.2021 05:30 montgomerykarloxc24x

The half life of uranium-235 is 4.5 billion years. If 0.5 half-lives have elapsed, how many years have gone by? A. 4.5 billion
B. 9 billion
C. 2.25 billion
D. 4 billion

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The half life of uranium-235 is 4.5 billion years. If 0.5 half-lives have elapsed, how many years ha...

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