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← GeographyWhich outcome accelerates ventifact formation on exposed bedrock?
A)Sustained, unidirectional katabatic wind events✓
B)Diurnal freeze-thaw cycles in arid climates
C)Deposition of fine alluvial sediments
D)Episodic flash flood inundation events
💡 Explanation
Katabatic winds enhance ventifact formation because abrasion relies on prolonged exposure to wind-driven particle erosion, therefore sculpting bedrock rather than freeze-thaw weathering which decomposes rock through physical expansion.
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