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← GeographyWhich outcome reduces forest carbon sequestration when pedogenesis declines?
A)Decreased clay mineral formation rates✓
B)Accelerated silicate mineral weathering rates
C)Increased dissolved organic carbon runoff
D)Enhanced mineral nutrient immobilization
💡 Explanation
Reduction in pedogenesis slows clay mineral formation which stabilizes soil organic matter, because clay surfaces protect organic molecules. Therefore, less carbon is locked into the soil, rather than faster mineral weathering which releases carbon elsewhere.
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