____ is a geological dating method based on the decay rates of radioactive elements. \na. rock observation…

____ is a geological dating method based on the decay rates of radioactive elements. \na. rock observation \nb. fossil comparison \nc. radiometric dating \nd. electromagnetic radiation
Answer
Brief Explanations:
Radiometric dating uses the decay rates of radioactive elements for geological dating. Rock observation involves examining rock - related features, fossil comparison is about comparing fossils for relative dating, and electromagnetic radiation is not a geological dating method based on radioactive - element decay.
Answer:
C. Radiometric dating