Posted by **Jay** on Wednesday, October 20, 2010 at 12:04am.

Suppose you have a sample of clamshell at a Paleoindian site and you measure the 14C activity of a 100-gram sample of carbon as 320 disintegrations per minute (or 3.2 disintegrations per

gram of carbon per minute).

a.What was the activity (in disintegrations per minute) for the 100-gram sample at the time it formed?

b. How do you know this?

c. What is the age of the sample?

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