Which risk increases when lava's viscosity prevents degassing?

💡 Explanation

Explosive eruptions increase, because high viscosity traps gas, and increasing pressure overcomes magma strength via volatile enhancement. This releases massive pyroclastic flows rather than effusive flows characteristic of shield volcanoes; sediment deposition is unrelated.

• Which risk increases when the orographic effect intensifies wind flow?
• Which mechanical process causes frequent shallow earthquakes along a transform plate boundary?
• Which hazard escalates when seawall undermining failure progresses?
• Which phenomenon directly results from the periodic elastic rebound along a transform fault?
• Which outcome occurs when seafloor spreading weakens globally?
• Which growth pattern indicates decreased mineral saturation within dripping cave stalactites?