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 landform evolution occurs when sustained abrasion by sand creates ventifacts?
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• Which mechanism sustains thermohaline circulation in the Atlantic Ocean when surface water cools significantly during winter?
• Which process reduces a lake's water level during stratification overturn?
• Which outcome is directly caused when aseismic creep along a transform fault stalls completely?
• Which outcome occurs when the viscosity of rhyolitic lava decreases within a stratovolcano during a fissure eruption under increasing hydrothermal pressure?