Which process redistributes clay and iron oxides through soil?

💡 Explanation

Illuviation concentrates dissolved or suspended material in a subsurface soil horizon. Leaching transports these materials downward because water percolates through the soil, therefore illuviation increases, rather than oxidation or evaporation doing so.

• Which topographical outcome results when Freeze-thaw weathering drives solifluction processes?
• Which risk increases when deep ocean upwelling stagnates?
• Which consequence results when a barrier island's overwash threshold is exceeded?
• Which outcome occurs when intense near-surface winds interact with alluvial plains?
• Which process dominates when water flow velocity decreases across an alluvial fan?
• Which consequence results when loess deposits consolidate under pressure?