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← GeographyWhich outcome occurs when intense rainfall saturates ultisol horizons?
A)Nutrient depletion decreases crop yield✓
B)Clay particle accumulation reduces porosity
C)Organic matter promotes aggregation stability
D)Mineral weathering increases cation exchange
💡 Explanation
Intense rainfall causes nutrient depletion because leaching removes cations from the A horizon reducing fertility; soil colloids move downward via eluviation. Therefore reduced crop yields, rather than enhanced horizons, occur with leaching’s negative effects.
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