Sedimentary Rocks Quiz

Which type of sedimentary rock is formed from fragments of other rocks?

• Clastic

• Organic

• Chemical

• Metamorphic

What is the most common agent of erosion on Earth?

• Ice

• Water

• Gravity

• Wind

What process involves the movement of rock fragments?

• Erosion

• Compaction

• Deposition

• Weathering

Which clastic rock is made up of rounded fragments?

• Shale

• Conglomerate

• Breccia

• Sandstone

What type of rock is characterized by a gritty feel similar to sandpaper?

• Siltstone

• Shale

• Conglomerate

• Sandstone

Which feature in clastic rocks indicates rapid evaporation of water?

• Layers

• Fossils

• Ripple marks

• Mud cracks

What is the main difference between sedimentary layers and crystal bands?

• Sedimentary layers are made of sediments, crystal bands are recrystallized minerals

• Sedimentary layers are found in igneous rocks, crystal bands in sedimentary rocks

• Sedimentary layers are vertical, crystal bands are horizontal

• Sedimentary layers are formed by wind, crystal bands by water

What process forms chemical sedimentary rocks through the crystallization of ions?

• Erosion

• Weathering

• Compaction

• Precipitation

Which rock is made up of the mineral halite?

• Rock gypsum

• Limestone

• Rock salt

• Dolostone

Which organic sedimentary rock is formed from dead plants?

• Rock gypsum

• Coal

• Limestone

• Dolostone