Which elements do geologists measure to determine the age of an organism’s remains? check all that apply. argon carbon-14 nitrogen potassium carbon-12

The right options are;

carbon-14

carbon-12

Geologists measure the amounts of radioactive carbon isotopes; carbon-14 and carbon-12 in an organism’s remains to determine its age. Carbon element is used because it is present in the environment, and it is usually available in the stable form of carbon-12 and the unstable form of carbon-14. When an organism is alive, it takes in equal amount of the two forms of carbon from the environment but when the organism dies, its carbon supply stops, and the whole carbon-14 in the organism disappears gradually. Scientists now determine the age of organism’s remains by measuring how much carbon-14 is left relative to the carbon-12. The ratio of the two values are then compared against an international reference standard.

OPTIONS (B) (E)

Explanation:

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