Answer:
Relative dating, geological history
Explanation:
Radiometric dating finds the exact age of a specific rock. This is useful because it allows you to determine the relative age of rocks around it. For example if there are three distinct layers in a rock formation, you could use radiometric dating on a sample from the middle layer and them be able to determine that the layer below is older than a specific time(age of middle layer) and the top layer is younger than that time. This is useful to determine the specifics of geological features and landmasses.
