Why don't these two sequences of fossil-bearing rocks match exactly?
A)they represent different parts of geologic time
B)one section was tilted but not the other
C)they have different histories of erosion and deposition
D)one represents a transgression whereas the other represents a regression

Question

Why don't these two sequences of fossil-bearing rocks match exactly? 
A)they represent different parts of geologic time 
B)one section was tilted but not the other 
C)they have different histories of erosion and deposition 
D)one represents a transgression whereas the other represents a regression

Quizplus · Accepted Answer

Fossil-bearing rocks can be affected by various processes such as erosion, deposition, and tectonic activity. Therefore, it is possible that the two sequences of rocks have different histories of erosion and deposition, leading to a mismatch in the sequence of fossils between the two sequences.

Why Don't These Two Sequences of Fossil-Bearing Rocks Match Exactly