Biology
Biology, 06.10.2019 11:30, krislinsanchez8088

Based on the graph, 2 half-lives equals
a) 4.5 billion years.
b) 9 billion years.
c) 12.5 billion years.
d) 18 billion years.

answer
Answers: 2

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Do you know the correct answer?
Based on the graph, 2 half-lives equals
a) 4.5 billion years.
b) 9 billion years.

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