Stratigraphy helps determine the relative age of artifacts based on their position in the earth's layers. The deeper the layer, the older the artifact.
Relative dating methods establish the age of an object or layer by comparing it to others, placing items in a chronological sequence rather than providing an exact age. - Radiocarbon Dating, Fission-track dating, and K-Ar Dating are absolute dating methods that yield specific ages or date ranges via isotopic measurements. - Stratigraphy, a relative dating technique, analyzes earth layers (strata) to determine the relative age of objects or fossils within different strata. Final Answer: \[\boxed{\text{The correct answer is (4) Stratigraphy.}}\]