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← GeographyWhich outcome occurs when increased atmospheric CO₂ concentration enhances rainfall acidity?
A)Accelerated chemical weathering of carbonate rocks✓
B)Reduced erosion rates in shale bedrock
C)Strengthened structural integrity of silicate minerals
D)Decreased sediment transport in river systems
💡 Explanation
Carbonic acid forms, prompting higher rates of 'dissolution'; increased acidity causes breakdown of calcium carbonate because increased hydrogen ions react with carbonate. Therefore, chemical weathering accelerates, rather than silicate structures strengthening, or sediment transport decreasing elsewhere.
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