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← GeographyWhich outcome is associated with hydration melting during subduction?
A)Island arc volcanism increases✓
B)Seafloor spreading accelerates
C)Continental rifting decelerates
D)Glacial isostatic rebound declines
💡 Explanation
Island arc volcanism will increase because subducting oceanic crust releases water into the mantle wedge, resulting in flux melting; therefore, magma generation increases, rather than other tectonic processes responding.
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