Answer:
Radioactive dating uses the age of a radioactive element to determine the exact age of a sample of rock or fossil.
Step-by-step explanation:
The method of matching the profusion ratio of a radioactive isotope to a source isotope to ascertain the age of a substance is described radioactive dating. Potassium-Argon dating is the usual generally employed procedure of radiometric dating. Potassium is an ingredient in many traditional minerals and can be practiced to discover the ages of metamorphic and volcanic rocks.