# 14 C is a radioactive isotope of carbon, which decays with a const ant half-life of...

###### Question:

14

C is a radioactive isotope of

carbon, which decays with a const

ant half-life of 5730 y.

If a

Megatherium

(giant sloth) skull

contains 0.011% of the

14

C it did when the animal

was alive,

how old

is the tusk?

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