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Geography

Which risk increases when tectonic uplift obstructs glacial meltwater flow?

A)An increase in glacial lake outburst floods
B)A decrease in regional seismic activity
C)A decrease in geothermal vent formation
D)An increase in regional biodiversity

💡 Explanation

Glacial Lake Outburst Floods increase because impoundment of meltwater increases hydrostatic pressure until the barrier fails via hydrofracturing, therefore creating a sudden release of water, rather than gradual drainage or harmless subsurface flow.

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