16 multiple choice 1 point scientists found trilobite and brachiopod index fossils in cliffs a great…

16 multiple choice 1 point scientists found trilobite and brachiopod index fossils in cliffs a great distance apart from each other. what can scientists infer about the rocks in which these fossils were found? the age of the rock the weathering of the rock the slope of the rock the density of the rock
Answer
Brief Explanations:
Index fossils are used to determine the age of rocks. They are fossils of organisms that lived during a specific, limited time period. By finding the same index fossils in different locations, scientists can infer that the rocks are of the same age.
Answer:
the age of the rock