Sedimentary Rocks

What is one of the characteristics of sedimentary rock?

• Vertical layers

• Horizontal layers

• Circular layers

• No layers

Limestone forms by the deposition of ________.

• calcium carbonate

• silica

• iron oxide

• gypsum

What process may expose sedimentary rock at the surface if it forms under Earth's surface?

• Erosion

• Uplift

• Weathering

• Melting

Sedimentary rock forms ________ over time.

• slowly

• quickly

• instantly

• randomly

What is one of the faster ways that sedimentary rock forms?

• Erosion

• Deposition of calcium carbonate

• Melting

• Weathering

What are sedimentary rocks formed from?

Sedimentary rocks are named according to the size and type of fragments they contain.

• True

• False

The remains of once-living organisms may form what if exposed to high temperature and pressure?

• Fossils

• Minerals

• Crystals

• Sediments