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The breaking of rock into smaller pieces by forces due to gravity, ice, plant, roots or other forces.
Rocks that form when layers of materials and rock particals settle on top of eachother, than harden.
Large section of Earth's crust that are constantly moving into, away from, and past each other.
Mostly made of basalt it is about 6 to 10 kilometers thick and is below most of the ocean floor.
Mostly made of granite and can be as thick as 75 kilometers. It can be under the ocean or make up land.
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