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Question
Continental crust is formed by ________.A) melting and differentiation of oceanic crust at subduction zones
B) partial melting of mantle rocks
C) plumes of hot igneous material that rise from the core-mantle boundary to form hot spots
D) the original planetary accretion that also led to the formation of the earth's other layers
E) recycling of material in giant lava lakes in the early earth history
Answer
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