Which outcome occurs after widespread ashfall on volcanic soils?

💡 Explanation

Chelation leaching causes the removal of essential metals because organic acids formed from ash decomposition bind to minerals, resulting in soluble complexes that are transported downwards by percolating water; therefore nutrient depletion increases in upper soil layers rather than causing soil stabilization.

• Which outcome directly reduces soil fertility after extreme rainfall?
• Which soil horizon develops reduced fertility when intense equatorial rainfall raises the leaching limit?
• Which consequence typically results when prolonged tephra deposition buries arable land?
• Which consequence results when strike-slip transform boundaries lock?
• Which mechanism causes the Intertropical Convergence Zone to experience a seasonal shift in latitude?
• Which geological conformation results when groundwater acidity increases?