Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks. Stratigraphy has two related subfields: lithostratigraphy (lithologic stratigraphy) and biostratigraphy (biologic stratigraphy).
Explanation:
hope this helps you if it does please mark brainiest
I'm thinking A. Because uniformitarianism means the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.
