Which phenomenon results from increased organic material deposition during pedogenesis?

💡 Explanation

Darkening of the A horizon occurs because increased organic matter deposition results in increased humification, a key process of pedogenesis. This changes the horizon's chemical composition, therefore the ground darkens, rather than alternative processes shaping horizon compositions.

• Which pedological effect strengthens topsoil development via bioturbation?
• Which phenomenon results when high viscosity felsic lava blocks a volcano's vent?
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• Which consequence results when arid region alluvial fans heavily develop?
• Which consequence to existing building foundations occurs because seasonal alluvial river flooding exceeds designed bank capacity?
• Which feedback loop accelerates cirque erosion under increased warming?