Answer:
A. The difference between relative dating and absolute dating is that relative dating determines the order in which events occurred, whereas absolute dating gives a numerical age for an event or object.
B. A half-life is the amount of time it takes for half of the original radioactive material to decay into a stable daughter isotope. This means that after one half-life, half of the original radioactive material will remain, and after two half-lives, one quarter of the original radioactive material will remain, and so on.
C. Scientists use radiometric dating to figure out the age of a substance by measuring the ratio of radioactive isotopes to stable daughter isotopes in a sample. By knowing the half-life of the radioactive isotope and measuring the ratio of the two isotopes in a sample, scientists can calculate how many half-lives have occurred and thus determine the age of the sample. This technique is commonly used to date rocks and minerals, but it can also be used to date fossils and other organic materials that contain radioactive isotopes.
Step-by-step explanation: