Which process creates steep fjord walls where glacial ice formerly contacted bedrock?

A)Ablation driven mechanical cryofracturing✓

B)Isostatic rebound reduces slope angles

C)Erosion resistant metamorphics dominate

D)Vegetation anchors colluvial sediment well

💡 Explanation

Mechanical cryofracturing at the ice-rock interface creates near-vertical walls initially, because direct thermal stress causes repeated freeze-thaw cycles concentrating pressure at cracks; therefore, steep slopes persist rather than gentler ablation-reduced angles in non-ice-contact zones.

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Which process creates steep fjord walls where glacial ice formerly contacted bedrock?

💡 Explanation

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