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← GeographyWhich mechanism primarily shapes lakes at convergent plate boundaries forming grabens?
A)Tectonic subsidence and faulting✓
B)Differential weathering resistance
C)Glacial scouring and ice damming
D)Volcanic eruption and crater collapse
💡 Explanation
Tectonic subsidence and faulting create grabens, therefore lakes form via crustal extension, rather than glacial erosion or volcanism, because the crust stretches and lowers relative elevation until it intercepts the water table.
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