The charred bones of a sloth in a cave in Chile represents the earliest evidence human presence at the southern tip of south america. A sample of the bone has a specific activity of 5.22 disintegrations per minute per gram of carbon (d/min*g. If tge ratio of 12C: 14C in living organisms result in a specific activity of 15.3 d/min*g, how old are the bone (t1/2 of 14C = 5730 yr?
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