Define Relative and Absolute age.
Define Relative and Absolute age. R elative age : The relative age of a rock is how old it is compared to another rock. The geologic age of a fossil organism, rock, geologic feature, or event, defined relative to other organisms, rocks, features, or events rather than in terms of years. A bsolute age : The absolute age is the age of a fossil in years. The absolute age of an Earth material is a measure of how old it actually is in years.