Which horizon change occurs when intense rainfall enhances leaching?

💡 Explanation

Enhanced rainfall causes increased mobilization of humus within the A horizon, reducing organic content because eluviation preferentially removes it rather than depositing it; therefore, the A horizon loses organic matter, rather than its enrichment, or impacts to zones below it.

• Which outcome arises when the isostatic rebound causes differential uplift across lake basins?
• Which outcome occurs when a coastal barrier island experiences significant overwash?
• Which outcome increases when continental interiors experience deflation?
• Which outcome occurs when increased thermal expansion weakens the temperature gradient along Arctic river outflow streams?
• Which process increases when acidic rainfall accelerates weathering in granite bedrock?
• Which mechanism causes the surface salinity differences along the North Atlantic Gulf Stream?