Which geomorphic outcome distinguishes a fjord from others?

💡 Explanation

A fjord results in a U-shaped valley because glacial erosion during ice ages deepens the valley past sea level via glacial abrasion creating the defining feature. Therefore, U-shaped valleys characterize fjords; rather than permafrost, post-glacial deposition, or isostatic mechanisms.

• Near coastlines underlain by limestone, which risk to underground freshwater aquifers increases due to storm surges?
• Near coastal cliffs, which outcome occurs when wave height increases significantly, exceeding the rock's cohesive limit?
• Which mechanism causes the braiding of a stream flowing from a melting glacier at high altitude?
• Which landform develops because differential weathering acts after glacial cirque formation?
• Which mechanism shapes ventifact development given limited dune sand?
• Which weather outcome frequently results because of thermals influenced by the Coriolis effect?