Question

geologist finds some tilted sedimentary rock layers. which conclusion can the geologist draw by looking at the rock layers? their absolute age is 600 million years. they were tilted before they were deposited. they were originally deposited horizontally. the youngest layer was originally deposited as the bottom layer.

Explanation:

According to the principle of original horizontality, sedimentary rock layers are initially deposited horizontally. Tilted layers indicate subsequent deformation.

Answer:

C. They were originally deposited horizontally.