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← ScienceWhich outcome arises when water-saturated soil repeatedly freezes, impacting foundations?
A)Cryostatic pressure induces soil heave✓
B)Osmotic suction compacts the soil
C)Pore collapse increases soil density
D)Matric potential stabilizes soil lattice
💡 Explanation
The formation of ice lenses during freezing, called cryostatic pressure, causes soil expansion, undermining structures; therefore, soil experiences heave, rather than compression, because water expands upon freezing under thermodynamic actions.
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