Multiple Choice
If an isotope has a half-life of 50 million years,and 1/8 of the sample remaining consists of that isotope,what is the age of the rock from which it was taken?
A) 400 million years
B) 300 million years
C) 150 million years
D) 800 million years
E) none of these
Correct Answer:

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Correct Answer:
Verified
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