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You Find a Fossil That You Think Is About 350

Question 97

Multiple Choice

You find a fossil that you think is about 350 million years old. You decide to use 235U to date a volcanic ash bed just below the key specimen. If you are correct, what approximate percentage of the original 235U would you expect to remain in your sample?


A) 0%
B) 25%
C) 50%
D) 75%
E) 100%

Correct Answer:

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