Which volcanic consequence increases when silica content increases?

💡 Explanation

Increased silica leads to higher magma viscosity, and therefore traps gas more effectively; this increases explosivity because vesicle nucleation allows for greater volatile expansion, rather than efficient outgassing.

• Which risk increases when carbonic acid saturates a cave?
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• Which feedback causes speleothems to increase deposition rates?
• Which characteristic indicates the equilibrium line altitude lowering on a cirque glacier?
• Which risk increases near coastal desalination plants employing intake systems within slow-rotating ocean gyres?
• Which outcome occurs when stratospheric air descends near 30° latitude?