How is magma generated along subduction zones?
A) Decompression melting of the mantle from weight reduction.
B) Fluids are dehydrated out of the descending plate, which lowers the melting point of the surrounding mantle.
C) Friction from colliding plates melts mantle material.
D) Radioactive decay melts mantle material.
Answer: B
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Fill in the blank(s) with the appropriate word(s).
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