The two principal agents of metamorphism are pressure and ______________.
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[Ques. 2] Regional metamorphism causes a parallel arrangement of mineral grains that results in a pronounced layering of the rock. The layering is known as ______________.
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[Ques. 3] The two principal agents of metamorphism are heat and ______________.
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[Ques. 4] Rocks formed by changes in structure or mineral content while remaining in the solid phase are classified as ______________.
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[Ques. 5] Stratification, or ______________, is the layering that develops at the time sediments are deposited.
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[Ques. 6] Sediments that are composed of solid fragments derived from preexisting rocks are called ______________ sediments.
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[Ques. 7] Sediments that are transported to the sea in solution are known as ______________ sediments.
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[Ques. 8] Particles of sand, mud, and rock fragments deposited along rivers, in lakes, and on the seafloors are called by the general term ______________.
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[Ques. 9] The sedimentary rock known as ______________ consists of angular pebbles cemented together by silica, calcium carbonate, or iron oxide.
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[Ques. 10] The sedimentary rock known as ______________ consists of rounded pebbles cemented together by silica, calcium carbonate, or iron oxide.
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