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← GeographyWhich outcome occurs when intensive agriculture disrupts pedogenesis?
A)Elluviation accelerates in upper horizons✓
B)Calcic horizons dominate surface layers
C)Bioturbation decreases aggregate stability
D)Regolith formation declines significantly
💡 Explanation
Increased soil disturbance from agriculture can enhance leaching (eluviation) of minerals from the A horizon because the physical soil structure facilitating retention is weakened, therefore increased removal occurs faster than replacement, rather than calcification or bioturbation changes.
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