Which deep-sea trench feature is enhanced during subduction?

💡 Explanation

Accretionary wedges grow at subduction zones because plate convergence scrapes sediment off the down-going plate, leading to sediment accumulation. Therefore, the wedge size increases; rather than abyssal stabilization which resists change, and vent/reef options which reflect chemical/biological processes.

• Which shift causes increased ocean upwelling along the South American coast during a La Niña event?
• Which consequence results when groundwater lowers in wetlands?
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• Which outcome occurs when glacial meltwater influences longshore drift?
• Which outcome occurs when density stratification weakens within oceanic basins?
• Which outcome is amplified when wave diffraction focuses energy around coastal headlands with sea stacks?