Which outcome occurs when seawater permeates subducting lithosphere?

💡 Explanation

Partial melting of the mantle wedge occurs because **flux melting** introduces water into already hot peridotite lowering its melting point; therefore, magma production increases, fueling volcanism, rather than other options which require altered thermal conditions and plate movement.

• Which effect complicates flood prediction in alluvial valleys?
• Which cascading failure results when thermokarst degradation compromises Arctic infrastructure?
• Which outcome occurs more readily from deflation when soil cementing agents are reduced?
• Which outcome occurs when increased glacial meltwater disrupts North Atlantic gyre circulation salinity gradient?
• Which geomorphic outcome will transform motion at a strike-slip fault regularly induce along convergent boundaries?
• Which outcome is caused when lava encounters seawater?