Question

Which of these is true about index fossils?

Are very scarcely found
Used as guides in relative dating
Found in the youngest layer of the rock
Used as reference points in absolute dating

Answer 1

the answer is b dont listen to them i did the test and got that one wrong

Step-by-step explanation:

i did the test

Answer 2

The correct option is D.
Index fossils are generally used in geologic dating of rocks. Index fossils are usually a rich source of information and they are use to ascertain periods of geologic time. Good index fossils have some important features which include: distinctiveness, widespread distribution and abundance.