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Umberto Broccoli, a senior heritage official, said some scholars still believed the wolf was of Etruscan origin.

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Recall that atoms are the basic building blocks of matter.

Atoms are made up of much smaller particles called protons, neutrons, and electrons.

Note that, contrary to a popular misconception, carbon dating is not used to date rocks at millions of years old.

Before we get into the details of how radiometric dating methods are used, we need to review some preliminary concepts from chemistry.

Diamonds and graphite are pure forms, and carbon is a major constituent of coal, petroleum, and natural gas.


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