Which outcome is most caused by mantle plume activity?

💡 Explanation

The formation of volcanic island chains arise from hotspots because the movement of the tectonic plates over a stationary mantle plume drives magma production where the island chains appear sequentially, rather than glacial calving, erosion, or precipitation patterns. Therefore hotspot volcanism causes islands.

• Which mechanism increases liquefaction risk in saturated silty sediment layers upon seismic wave propagation?
• Which mechanism causes localized increases in marine photosynthetic activity resulting from coastal upwelling?
• Which outcome results when a meandering stream's outer bank experiences persistent erosion due to shifts in groundwater flow?
• Which factor accelerates lateritic soil formation via pedogenesis?
• Which consequence results when nearshore upwelling declines due to El Niño?
• Which effect accelerates soil creep downslope where permafrost melts?