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← GeographyWhich risk dramatically increases when seasonal variation weakens prevailing winds inside subtropical gyres?
A)Increased coastal fog formation
B)Enhanced deep-sea vent activity
C)Accelerated plastic debris accumulation✓
D)Intensified oceanic carbon sequestration
💡 Explanation
Weakened winds reduce the centripetal force that confines floating plastics toward the gyre's center via Ekman transport; because the pressure gradient force weakens also, debris accumulation accelerates there rather than diffusing more broadly.
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