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← GeographyWhich effect accelerates karren formation on limestone outcrops?
A)Dissolution rate positive feedback✓
B)Increased regional evapotranspiration
C)Lower saturation vapor pressure
D)Decreased geothermal heat flux
💡 Explanation
Faster dissolution amplifies surface irregularities; chemical weathering of limestone promotes increased surface area, which in turn increases the dissolution rate by positive feedback, because it creates more reactive spots. Therefore, localized dissolution intensifies, rather than uniform erosion from climate or heat.
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