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Geography

Which outcome of glacial rebound causes crustal earthquakes?

A)Isostatic adjustment increasing shear stress
B)Erosion rates exceeding isostatic uplift
C)Reduced sediment loading on faults
D)Decreased pore pressure destabilizing bedrock

💡 Explanation

Rapid deglaciation causes crustal uplift via isostatic adjustment; this concentrates shear stress on existing fault lines because of differential vertical movement. Therefore, seismic activity increases, rather than decreases that would occur due to reduced static loading.

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