Which outcome results when excessive tephra accumulates quickly?

💡 Explanation

Crop failure is likely because high tephra accumulation introduces acid precursor compounds; the acid rain mechanism lowers soil pH, therefore, it destroys crops, rather than affects glaciers, ocean currents or crustal density isostatically.

• Which process causes accelerated crustal subsidence during large stratovolcano formation?
• Which risk increases when water table drawdown lowers buoyant support in subterranean karst regions overlying urban infrastructure?
• Which outcome occurs when coastal upwelling stalls due to atmospheric conditions?
• Which risk notably increases as waves persistently exploit weaknesses within coastal sea stacks?
• Which mechanism limits development suitability within a floodplain filled with uncompacted alluvial sediments during seismic activity?
• Which outcome occurs during a volcanic eruption where pyroclastic density currents encounter a body of water?