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← GeographyWhich mechanism heats the mantle wedge during subduction?
A)Frictional heating from plate movement✓
B)Radioactive decay of mantle elements
C)Conduction from core solidification
D)Adiabatic compression of sinking materials
💡 Explanation
Frictional heating increases temperature during subduction, creating magma because kinetic energy converts to thermal energy. High temperatures in the mantle wedge promote partial melting; rather than conduction or adiabatic effects dominating at those depths.
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