Sedimentary Rocks

What are sedimentary rocks primarily composed of?

• Minerals
• Crystals
• Metals
• Gases
• Liquids

What is the process called when sedimentary rocks are formed?

• Sedimentation
• Deposition
• Cementation
• Erosion
• Metamorphism

How are the grains in sedimentary rocks typically arranged?

• In layers
• Randomly
• In clusters
• In chains
• In spirals

Which of the following is an example of a sedimentary rock?

• Sandstone
• Granite
• Marble
• Obsidian
• Gneiss

What is the significance of the oldest layers in sedimentary rocks?

• They are found at the bottom
• They are found at the top
• They contain the most minerals
• They are the thickest layers
• They are the most weathered

What is the final process in the formation of sedimentary rocks?

• Cementation
• Compaction
• Erosion
• Weathering
• Metamorphism

What happens during compaction in the formation of sedimentary rocks?

• The weight of upper layers compacts the lower layers
• Layers of sediment are deposited
• The grains of the sediment harden
• The sediment is transported
• New minerals are formed

How are sedimentary rocks different from igneous and metamorphic rocks?

• Sedimentary rocks are formed from sediment
• Igneous rocks are formed from cooling magma or lava
• Metamorphic rocks undergo intense heat and pressure
• All of the above
• None of the above

What is the primary agent of sediment transport in rivers?

• Water
• Ice
• Wind
• Gravity
• Heat

What is the name given to the process of sediment settling and accumulating in one location?

• Deposition
• Erosion
• Transportation
• Weathering
• Melting