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← GeographyWhich material loss occurs when dust abrasion forms ventifacts?
A)Preferential etching of weaker minerals✓
B)Oxidation dominates mineral surface weathering
C)Thermal fracturing increases available surface
D)Chemical hydration alters rock structure
💡 Explanation
Ventifacts form via dust abrasion causing deflation. Preferential etching dominates, because weaker minerals erode at higher rates due to lower hardness, then resulting in distinct shapes, rather than uniform weathering via oxidation processes.
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