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← GeographyWhich consequence results when excessive irrigation accelerates subsurface dissolution?
A)Increased sinkhole formation risk✓
B)Enhanced aquifer recharge rates
C)Reduced soil salinity gradients
D)Decreased baseflow to streams
💡 Explanation
Increased sinkhole formation is the result of accelerated dissolution of carbonate bedrock. The infiltrating water, enhanced by introduced surface pollutants and CO2, increases chemical weathering. This creates subsurface voids because the dissolution of bedrock exceeds structural support, therefore sinkholes become more frequent rather than slower to develop.
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