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← GeographyWhich geological outcome is accelerated when sediment accumulates near subduction zones?
A)Formation of accretionary wedges✓
B)Metamorphic rock development
C)Deep ocean trench widening
D)Rift valley fault activation
💡 Explanation
The accretion of sediment facilitates the formation of accretionary wedges through a process called off-scraping. Because the denser subducting plate scrapes sediment from overriding plates, a wedge forms; therefore the faster accretion, rather than other geological formations happens.
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