Geological evidence indicates that Earth is approximately 4.6 billion years old. For scientists to be able to explain the origin of life on Earth, they must be able to accurately date organisms. One method that scientists use to date samples is called radioactive dating. Which of the following best describes radioactive dating? A Radioactive dating is a method of absolute dating.

B Radioactive dating is a method of relative dating.

C Radioactive dating uses index fossils to date rocks.

D Radioactive dating is the use of a geological time scale.