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← GeographyWhich cave-system change occurs during rapid glacial melt?
A)Isostatic rebound expands cave fractures
B)Glacio-eustatic sea level alters aquifers✓
C)Increased hydrostatic pressure collapses chambers
D)Permafrost thaw releases ancient microbes
💡 Explanation
Glacio-eustatic sea-level changes alter local hydrostatic conditions because meltwater returns to the ocean affecting coastal aquifer levels. Therefore, changing sea level alters cave flooding, rather than pressure collapse, permafrost melt, or tectonic rebound.
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