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← GeographyWhich risk increases when saturated soil experiences seismic shear waves during an earthquake?
A)Liquefaction and structural collapse✓
B)Tsunami generation from seabed uplift
C)Landslide initiation on steep slopes
D)Volcanic eruption from magma chamber rupture
💡 Explanation
When saturated soil experiences seismic shear forces, liquefaction can occur because the soil loses effective strength due to increased pore water pressure, causing it to behave like a liquid, leading to structural collapse. Therefore liquefaction becomes more likely, rather than tsunami, landslides, or eruption which require distinct mechanisms.
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