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← GeographyWhich outcome relating to soil results as pedogenesis occurs with permafrost thawing?
A)Increased organic matter decomposition rates✓
B)Decreased mineral nutrient availability slowly
C)Elevated chemical weathering reaction kinetics
D)Minimized active layer thickness locally
💡 Explanation
Increased organic matter decomposition results because permafrost thaw accelerates heterotrophic respiration during pedogenesis, therefore, previously frozen organic carbon is released rather than remaining sequestered in stable compounds, influencing the processes.
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