Which outcome occurs when increased atmospheric carbon dioxide concentrations enhance limestone dissolution?

💡 Explanation

Increased atmospheric CO₂ enhances carbonic acid formation in rainwater, accelerating limestone dissolution, which causes karst topography development because chemical weathering dominates. Therefore, broad dissolving, rather than iron fertilization, is the result of enhanced carbonic dissolution causing topographical cave-ins.

• Which outcome occurs when floodplains experience increased sediment deposition?
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