Which outcome typically occurs when glacial retreat exposes a U-shaped valley to marine inundation?

💡 Explanation

Marine inundation of a U-shaped valley due to glacial retreat causes fjord formation because isostatic rebound and sea level rise drive the process, therefore creating a deepwater inlet, rather than a shallow estuary as typically formed by riverine processes.

• Which outcome commonly results from prolonged aeolian abrasion?
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