Sedimentary Rocks

Geologists classify sedimentary rocks into three major groups: __________ rock, chemical rock, and organic rock.

• clastic
• coal
• limestone

Which is the process by that breaks up rock on Earth's surface?

• deposition
• erosion
• compaction
• weathering

__________ is a sedimentary rock formed from the remains of swamp plants buried in water.

• clastic
• coal
• limestone

Which forms when minerals dissolved in a water solutuion crystallize?

• clastic rock
• organic rock
• chemical rock
• sediment

__________ is a sedimentary rock formed from coral, shells, and skeletons that piled up on the ocean floor.

• clastic
• coal
• limestone

Which is an example of an organic rock?

• breccia
• coal
• rock salt
• shale

__________ is the process by which sediments are pressed together.

• compaction
• sediment
• size

Which rock can be a chemical or an organic rock?

• limestone
• sandstone
• shale
• conglomerate

Sand grains, pebbles, mud, shells, and leaves are all examples of __________.

• compaction
• sediment
• size

Clastic rocks are grouped by the __________ of the rock fragments of which they are made.

• compaction
• sediment
• size