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← GeographyWhich mechanism causes formation of ventifacts in deserts?
A)Abrasion by windborne particle impacts✓
B)Chemical alteration of rock composition
C)Thermal stress fracturing exfoliation
D)Dissolution by infrequent heavy rain
💡 Explanation
Ventifacts form because wind abrasion acts as the primary mechanism, creating polished and faceted rocks through constant wind-driven particle impacts. Therefore, differential weathering occurs rather than uniform erosion from chemical solutions or surface fracturing.
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