Question

which correctly lists the three isotopes that geologists measure to determine the age of an organisms remains?
argon, nitrogen, and carbon-12
carbon-14, nitrogen, and carbon-12
nitrogen, potassium, and carbon-14
carbon-12, potassium, and argon

Explanation:

Carbon - 14 is used in radiocarbon dating for organic remains. Carbon - 12 is a stable carbon isotope present in all organic matter and is a reference in such analyses. Nitrogen is a by - product of carbon - 14 decay. Geologists use carbon - 14, nitrogen, and carbon - 12 for age determination of organic remains.

Answer:

carbon-14, nitrogen, and carbon-12