Which outcome occurs when construction on unstable alluvial terraces?

💡 Explanation

Construction destabilizes the already compressible material experiencing differential consolidation because increasing the load of a structure causes faster settling. Ground settles unevenly eroding the building’s underpinnings; therefore subsidence occurs on floodplains, rather than heightened wind risk.

• Which risk increases when heavy tephra accumulates after eruption?
• Which mechanism causes layering in glacial loess deposits?
• Which outcome occurs when glacial melt rate exceeds outflow?
• Which outcome is accelerated by increased saturation during subduction?
• Which outcome occurs when parent rock weathers during pedogenesis?
• Which mechanism causes levees parallel to pyroclastic flows?