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Apologia Module #6..

Added a few for module #6

TermDefinition
How is sedimentary rock formed? Sedimentary - sediments that are layed down by water or some other agent.
What causes a river to form a Delta? Erosion.
What is an angular unconformity? An unconformity where the rock strata below it are tilted relative to the rock strata above.
What is a nonconformity? When sedimentary rock rests atop of igneous or metamorphic rock, the unconformity that lies between them is called a nonconformity.
If an unconformity exists between two parallel strata of sedimentary rock what kind of unconformity is it? It is a disconformity.
How is igneous rock formed? It is formed from molten rock (magma; from a volcano) that hardens.
How is metamorphic rock formed? It is formed by undergoing change usually caused by heat and/or pressure. Both sedimentary and igneous rock can form metamorphic rock. Typically very hard.
Created by: CMuny
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