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Geography

When intense rainfall saturates a soil profile on a sloped terrain, which consequence to horizon development preferentially initiates downslope?

A)Accelerated colluvial deposit accumulation
B)Enhanced clay mineral transformation
C)Increased organic matter decomposition
D)Reduced microbial community diversity

💡 Explanation

The primary initial effect is colluvial deposits. Saturation triggers preferential downslope material because **leaching** physically carries soil particles downslope and deposits them further down gradient territories; therefore horizon development is interrupted locally rather than changing soil properties.

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