Which outcome results near shield volcanoes with pahoehoe flows?

💡 Explanation

Lava tubes form because increased surface crust viscosity prevents radiative heat loss initiating channelization; this is laminar flow. Therefore, tubes form, rather than immediate cooling, which would cause sheet flows or explosive eruptions from increased gas pressure.

• Which risk markedly increases along barrier islands trending parallel if rising sea temperatures reduce ice sheet albedo?
• Which consequence results when reduced vegetation accelerates topsoil loss?
• Which outcome occurs when groundwater discharge exceeds infiltration capacities within an alluvial fan?
• Which hydrological consequence results when speleothems seal cave entrances?
• Which consequence results when buildings impede downslope flow during solifluction?
• Which process generates a lava dome following eruption?