"The Principle of Fossil/Faunal Succession states that groups of fossil plants and animals occur in the geologic record in a definite and determinable order" is TRUE.
Option: A
Explanation:
The theory of faunal succession is predicated on the belief that sedimentary rock strata comprise fossilized flora and fauna, and that such fossils are vertically active in a particular, stable sequence which can be defined over large horizontal ranges.
For geologists who have to understand the ages of the rocks they are studying, the Law of Fossil Succession is really relevant. The fossils that are embedded in a rock exposure or in a core hole can be used very specifically to evaluate the rock age.