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Staements I: To determine the age of cer...

Staements I: To determine the age of certain very old oragnic samples, dating of the sample with radioactive isotpes having larger half-life is a better choice than with radioactive isotopes having smaller half-lives.
Staements II: The activity of a radioactive sample having smaller half-life is negligibly small after a very long time and hence makes it next to impossible to get dtected.

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