Alternate Freezing and Thawing of Soils Results in the "Heaving

question 4

Multiple Choice

Alternate freezing and thawing of soils results in the "heaving" of plants and the destruction of shallow building foundations.This effect is due primarily to _____.

• A)the expansion of water when it freezes
• B)the wetting and drying of swelling-type clays
• C)pressure from upward movement of water from lower horizons
• D)the breaking down of soil aggregates due to freezing and thawing
• E)the hydration of adsorbed cations on the soil colloids

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