select the correct answer. how is relative - age dating used to determine the ages of fossils? a. by…

select the correct answer. how is relative - age dating used to determine the ages of fossils? a. by observing the formation of sedimentary rocks b. by using radioactive isotopes c. by estimating the number of fossils in a particular region d. by the formation of igneous rocks e. by identifying the way the fossils were formed
Answer
Brief Explanations:
Relative - age dating of fossils is based on the principle of superposition in sedimentary rock layers. Older fossils are in lower layers and younger ones in upper layers. Radioactive isotopes are for absolute - age dating. Number of fossils, igneous rock formation, and fossil formation way are not related to relative - age dating.
Answer:
A. by observing the formation of sedimentary rocks