Author Question: Observed in a vertical cross section, soil is made up of distinct layers. From the surface downward, ... (Read 89 times)

Brittanyd9008 · **on:** Jul 13, 2018

Observed in a vertical cross section, soil is made up of distinct layers. From the surface downward, the layers are designated ____.
A)O, E, A, B, and C
B)A, B, C, O, and E
C)O, A, E, B, and C
D)A, O, E, B, and C
E)E, A, B, O, and C

Question 2

Trilobites, an organism abundant in the Early Paleozoic and less abundant in the Late Paleozoic, greatly flourished after the Permian extinction.
Indicate whether the statement is true or false