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← GeographyWhich outcome accelerates subsidence in agricultural karst regions?
A)Oxidation from nitrogen-based fertilizer runoff✓
B)Mineral clogging increased groundwater flow
C)Recharge increases from reforestation projects
D)Decomposition rates from reduced tillage
💡 Explanation
Increased nitrogen fertilizer use leads to runoff, causing acid soil conditions driving dissolution of limestone bedrock through acidification, which initiates sinkhole formation on the surface; therefore increased sinkholes, rather than changes in recharge, occur.
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