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Geography

Which 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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