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← GeographyWhich outcome is driven when the Juan de Fuca plate subducts?
A)Crustal melting and magma formation✓
B)Decreased seismic activity region-wide
C)Glacial isostatic rebound acceleration
D)Increased formation of evaporite deposits
💡 Explanation
Crustal melting occurs because subduction introduces water into the mantle, causing flux melting that lowers the mantle rocks' melting temperature significantly; therefore, magma forms, rather than decreased seismic activity or glacial effects.
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