Q: Sedimentary rocks form in what kind of layers?


Read this paragraph and choose the correct option from the provided answers:

Sedimentary rocks are formed in horizontal layers. This is magnificently displayed around the southwestern United States. The arid climate allows rock layers to be well exposed ( Figure below ). The lowest layers are the oldest and the higher layers are younger.

 Choices:

- stacked

- magnetic

- vertical

- horizontal


A:
horizontal