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← GeographyWhich consequence results when agricultural topsoil experiences prolonged weathering in high precipitation environments?
A)Nutrient depletion via eluviation/leaching✓
B)Increased cation exchange capacity
C)Enhanced soil aggregation stability
D)Formation of iron-rich duricrust layers
💡 Explanation
Nutrient depletion occurs because sustained rainfall causes eluviation/leaching of soluble minerals, thereby reducing soil fertility. This outcome occurs rather than duricrust formation because well-drained soils prevent the concentration of iron oxides.
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