Which outcome develops when intense tropical rainfall alters surface soil profiles?

💡 Explanation

Nutrient depletion occurs via leaching because heavy rainfall mobilizes soluble minerals from surface layers. Clay minerals and organic matter wash downwards via eluviation, therefore the upper A horizon loses fertility rather than having higher pH due to concentration of base cations.

• Which consequence results when excessive irrigation accelerates subsurface dissolution?
• Which flow behavior occurs in fjord estuaries when freshwater runoff creates a less dense surface layer during winter?
• Mature river meanders can self-seal across their neck, which causes which outcome?
• Which slope stability risk increases when repeated freeze-thaw cycles affect shale bedrock underlying a tundra region with solifluction?
• Which outcome results when high-latitude continental glaciers melt rapidly?
• Which outcome results when pyroclastic density currents deposit ignimbrite?