Question

How is carbon dating used to determine the age of animal and plant fossils?

Answer 1

By decay rate of carbon 14.

Explanation:

It is simply called as radiocarbon dating or Carbon-14 dating. Carbon-14 is a radioactive isotope of carbon, with a half-life of 5,730 years. It decays within fixed rate of time.
The carbon-14 decays at this constant rate. It estimates the date at which an organism died by measuring the amount of its residual radiocarbon.
The carbon-14 method was developed by the American physicist Willard F. Libby about 1946. Thank