Which soil horizon deficit results when continuous heavy rainfall causes enhanced aluminum mobilization?

💡 Explanation

Excessive rainfall causes **leaching** of clay and iron oxides via eluviation. This leaves behind a light-colored E horizon because aluminum mobilization depletes that layer, therefore the eluviation layer lacks clay, rather than accumulating oxides.

• Which geological outcome results from altered groundwater flow?
• Which outcome occurs when snowpack rapidly melts along a fault during sudden tectonic movement?
• Which outcome develops when excess sediment loads overwhelm alluvial terraces?
• Which phenomenon causes nutrient depletion in surface waters along the coast of South America during El Niño events?
• Which consequence results when excessive groundwater pumping accelerates soil salinization?
• Which outcome is magnified by the orographic effect?