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Geography

Which risk increases when extensive freeze-thaw fracturing weakens sandstone cliffs above transverse dunes?

A)Increased downstream sediment accretion rate
B)Accelerated chemical weathering of feldspars
C)Decreased fluvial sediment transport volume
D)Reduced longshore drift sediment deposition

💡 Explanation

An increased risk of sand inundation occurs because mass wasting creates more sediment that can then be mobilized by Aeolian transport and deposited as dune acreage via saltation, therefore increasing the downstream accretion rate, rather than directly influencing other distant aeolian and fluvial processes.

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