Which outcome is directly enhanced after prolonged volcanic ash dispersal on a stable upwelling zone?

💡 Explanation

Marine primary productivity increases because volcanic ash provides iron, fueling phytoplankton growth via nutrient fertilization. This fertilization effect enhances the food web in the upwelling zone, rather than decreasing density or changing stratification.

• Which outcome occurs when increased glacial meltwater streams significantly freshen North Atlantic surface waters?
• Which outcome occurs when regional dust storms deposit loess?
• Which process determines shape when freeze-thaw weakens bedrock walls above a glacial cirque?
• Which mechanism intensifies coastal erosion rates along fjord shorelines during regional isostatic rebound?
• Which mechanism limits the maximum height of volcanic arc mountains formed by subduction?
• Which outcome occurs when intense glacial erosion targets the slope of a mountain?