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← ScienceWhich mechanism explains ice lens formation in permafrost?
A)Cryosuction causes preferential water migration✓
B)Osmosis concentrates dissolved mineral solutes
C)Heat pipes redistribute soil temperatures
D)Advection cycles air in porous mediums
💡 Explanation
As temperatures plummet, cryosuction drives upward water migration toward growing ice crystals due to phase transition's energy gradient creating suction; therefore, ice lenses expand rather than forming evenly throughout, because freezing point depression isn't influential.
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