Which process causes clay accumulation enhancing argillic horizons?

💡 Explanation

Illuviation concentrates clay because of clay leaching from upper to lower soil horizons. The clay accumulates in the B horizon, creating an argillic horizon; therefore, illuviation is correct, rather than runoff because it removes material.

• Which consequence results when eolian transport exceeds deposition?
• Which flooding outcome occurs when frequent deposition overloads fans at mountain fronts?
• Which impact diminishes effectiveness most during sustained aggregate leaching?
• What amplified seismic event creates transoceanic tsunami waves following megathrust earthquakes?
• Which disruptive effect arises from upwelling's sudden reduction?
• Which outcome results when insolation decreases in coastal dune ecosystems?