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← GeographyWhich mechanism triggers land bridge formation when eustatic sea level falls?
A)Isostatic rebound lowers surface elevations
B)Glacio-eustasy reduces ocean volume✓
C)Thermal expansion raises water lines
D)Tectonic uplift exposes continental shelves
💡 Explanation
Decreasing global ice volume (glacio-eustasy) causes the sea level to fall, because water is stored as ice, therefore exposing previously submerged land; rather than rebound, expansion, or uplift influencing water lines.
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