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Question
- rock in the crust moves around differently than rock in the lower mantle.
a. is the rock in the crust able to move around more easily than the rock in the lower mantle? (1 point)
b. what causes the difference in the movement? (4 points)
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Yes, the rock in the crust is able to move around more easily than the rock in the lower mantle.
The difference in movement is caused by variations in temperature, pressure, and rock composition: crustal rock is cooler, under less pressure, and more brittle, while lower mantle rock is hotter, under extreme pressure, and behaves plastically.