Question

which of the following best describes a geologic cross section?
a. a map showing the location of fossil deposits
b. a cutaway view showing how rock layers are arranged underground
c. a timeline of earths major extinction events
d. a chart showing the evolution of species over time

Explanation:

A geologic cross - section is a visual representation. It shows the vertical arrangement of rock layers beneath the Earth's surface. Option a is about the location of fossil deposits (a map), not the internal rock - layer arrangement. Option c is a timeline of extinction events. Option d is about species evolution. Only option b describes a cutaway view (which is what a geologic cross - section is) showing rock - layer arrangement underground.

Answer:

B. A cutaway view showing how rock layers are arranged underground