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← GeographyWhich outcome occurs when rapid progradation in alluvial coastal plains restricts accommodation space?
A)Increased frequency of avulsions✓
B)Enhanced tidal prism formation
C)Decreased sediment bypass efficiency
D)Reduced backwater influence extent
💡 Explanation
Increased avulsions are triggered due to decreased accommodation because the gradient advantage increases due to sediment aggradation reducing the channel's efficiency which prompts shifts; therefore, avulsions become more frequent with gradient increases, rather than enhanced tidal prisms.
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