Question

The cross sections below represent three geologic columns, I, II, and III, exposed at three different

locations. The rock layers have not been overturned. Letters A through E represent different fossils.
Which rock layer is the youngest?
(1) green shale containing fossil B in column I
(2) glacial soil containing fossil E in column III
(3) brown sandstone containing fossil C in column II
(4) gray limestone containing fossil D in column I

Answer 1

After looking at the cross sections in the photo you posted, you can clearly see the rock layers have not been overturned. After looking at all of the different fossils, you can determine that the youngest rock layer is the glacial soil containing fossil E in column 3. The correct answer choice is going to be choice number 2.