Which feedback cycle influences soil horizon development during enhanced bioturbation?

💡 Explanation

Increased bioturbation enhances aeration, which accelerates weathering via oxidation; this is a positive feedback because "bioturbation" mixes soil, increasing oxygen exposure. Therefore, oxidation is favored over processes limited by low oxygen, rather than porosity reduction.

• Which outcome results near mine tailings piles during periods of heavy precipitation?
• Which biogeochemical outcome results during El Niño events?
• Which process primarily establishes soil profile horizons via pedogenesis?
• Which process most directly contributes to sorting alluvial sediments by particle size during fluvial transport?
• Which process significantly influences the rate of sediment accumulation in a fjord with actively calving glaciers?
• Which outcome occurs when glacial sediment blocks a valley, trapping meltwater?