Which risk increases drastically due to prolonged tephra fallout near active stratovolcanoes?

💡 Explanation

Abrasive wear risks intensify during tephra fallout because fine volcanic ash erodes turbine surfaces via abrasion, rather than other corrosive effects, therefore, requiring costly repairs; rather than forest shading/sedimentary/structural issues.

• Which effect intensifies when freeze-thaw cycles erode bedrock within a glacial cirque?
• Which outcome occurs when wind driven surface currents meet landmasses?
• Which outcome occurs when high Arctic ice melt disrupts the North Atlantic ocean?
• Following repeated seasonal flash floods across alluvial fans in arid regions, which outcome directly results related to local aeolian processes?
• Which risk increases when significant bioturbation ceases within soil?
• Which outcome is caused when coastal upwelling strengthens along the Peru coastline?