Relative Dating Answers

This diagram shows rock formations forming.

Which feature forms at Earth’s surface from the cooling of lava?

The image shows sedimentary rock layers with index fossils and a fault.

A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels the layers A, B, C, and D from the top to the bottom.Which statement about these layers is accurate?

Which statement explains one reason why unconformities occur?

A scientist finds a fossil that she thinks might make a good index fossil.Which characteristic does this fossil most likely have?

Which correctly lists three different geologic features that help scientists determine the relative ages of rocks by their positions?

The diagram shows horizontal rock layers.

In which situation is the principle of cross-cutting relationships useful in determining relative age?

A geologist finds some tilted sedimentary rock layers.Which conclusion can the geologist draw by looking at the rock layers?