Which process sharply restricts nutrient availability specifically within deep fjord basins?

💡 Explanation

Sill-induced stratification limits nutrient mixing because a raised sill restricts deep water exchange. This prevents oxygen replenishment, potentially leading to anoxia; therefore, nutrient cycling is drastically reduced, rather than enhanced by upwelling.

• Near river floodplains, which process results in loess accumulation?
• Which process causes fertile farmland development from loess?
• Which stone surface characteristic indicates prolonged abrasion on ventifacts?
• Which outcome results when soil organisms experience temperature extremes?
• Which process triggers explosive volcanism when magma viscosity and dissolved gas content are both high?
• Which effect accelerates river avulsion on a broad alluvial plain with high sediment load?