Which mechanism primarily causes an oxbow lake to eventually become a swamp?

💡 Explanation

When nutrient runoff increases, eutrophication occurs as excess nitrogen and phosphorus fuel algal blooms, leading to oxygen depletion and subsequent organic matter accumulation, transitioning the lake into a swamp. Therefore, swamp formation is sped up by eutrophication, rather than changes in water balance or chemical weathering of surrounding rock.

• Which outcome occurs when trade winds approach mountainous islands?
• Which geomorphic outcome accelerates due to thawing permafrost along Arctic coastlines?
• Which outcome occurs when floodplains experience prolonged anaerobic conditions?
• Which weather phenomenon results from the Coriolis effect acting on synoptic air masses influenced by a high-pressure system?
• Which outcome results when CO₂ saturation decreases inside karst stalactite formations?
• Which risk increases when roads are constructed across regions with active solifluction?