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← GeographyWhich geological effect occurs due to carbonic acid?
A)Karst topography formation in limestone✓
B)Formation of shield volcanoes over hotspots
C)Glacial erratic deposition in valleys
D)Subduction zone creation at plate boundaries
💡 Explanation
The creation of Karst topography involves the dissolution of limestone by carbonic acid; this chemical weathering creates caves and sinkholes because limestone is particularly susceptible to dissolution rather than mechanical breakdown. Shield volcanoes come from volcanism.
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