Answer;
-Stratigraphy, Paleontology
In statigraphy you study rock strata, and in paleontology you study fossils.
Explanation;
-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 is important in geology because at its most simple level it allows geologists to determine the sequence of events in a sedimentary basin.
-Paleontology is a scientific study of life of the geologic past that involves the analysis of plant and animal fossils, including those of microscopic size, preserved in rocks. In short, paleontology is the study of what fossils tell us about the ecology of the past, about evolution, and about our place, as humans, in the world.
