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← GeographyOn a sloping terrain underlain by permafrost, which landform results primarily due to extensive solifluction?
A)Terracettes or soil steps aligned downslope✓
B)Eskers: sinuous ridges of sorted gravel
C)Kettles: depression formed by melting ice
D)Drumlins: elongated hills of glacial till
💡 Explanation
When soil saturated with meltwater undergoes solifluction on slopes, creep deformation occurs due to freeze-thaw cycles, causing downslope movement. This process leads to terracettes, or staircase-like soil steps. Therefore soil steps result, rather than eskers, kettles or drumlins, which are formed via glacial meltwater or ice-contact deposition.
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