which measurement do geologists use to find the absolute age of once - living things?\namount of decayed…

which measurement do geologists use to find the absolute age of once - living things?\namount of decayed daughter elements\ntotal number of half - lives for the element potassium\nage of ancient rocks located near the remains\namount of carbon - 14 and nitrogen - 14 in the remains
Answer
Brief Explanations:
Geologists use radiocarbon - dating for once - living things. Carbon - 14 is an isotope present in living organisms. When an organism dies, carbon - 14 decays into nitrogen - 14. By measuring the ratio of carbon - 14 to nitrogen - 14 in the remains, the absolute age can be determined.
Answer:
amount of carbon-14 and nitrogen-14 in the remains