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15 questions
What are the types of sedimentary rock?
Igneous; Metamorphic; Sedimentary
Clastic; Igneous; Sedimentary
Chemical; Clastic; Inorganic
Organic; Clastic; Chemical
Chemical rocks are...
Made from heat
Made when water evaporates and minerals crystallize
Made from dead animals/plants
Made from pieces of other rocks
Organic rocks are...
Made from heat
Made when water evaporates and minerals crystallize
Made from the remains of dead animals/plants
Made from pieces of other rocks
Which formation process do most sedimentary rocks follow?
cementation, compaction, deposition, erosion
erosion, compaction, cementation, deposition
erosion, deposition, compaction, cementation
Which best describes deposition?
sediment pressing together
dissolved minerals crystallize and glue particles together
particles settle as loosely packed sediment
running water or wind carry away fragments of rock
Which process best describes compaction?
particles are squeezed together under pressure
particles glue together as minerals harden
sediment settles
How are clastic rocks formed?
minerals dissolve in a solution & then crystallize
rock fragments are squeezed together
remains of plants & animals are deposited in thick layers
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