Question

Carbon dating and other similar methods calculate age of a sample by quantifying the amount of
Responses
A nuclear fusion.nuclear fusion.
B photosynthesis.photosynthesis.
C radioactive decay.radioactive decay.
D electrons in a sample.electrons in a sample.

Answer 1

C — radioactive decay.

Carbon dating measures how much of a radioactive isotope (carbon-14) remains (or how much has decayed) and uses its known half-life to calculate the sample's age.