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What is the process of frost action

User Martin Hansen Lennox
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the process of alternate freezing and thawing of moisture in soil, rock and other materials, and the resulting effects on materials and on structures placed on, or in, the ground.
User Malber
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Answer:

Frost is the decrease in air temperature to a value equal to or lower than the freezing point of water 0 ° C (WMO, 1992). The ice cover is one of its forms produced by the sublimation of water vapor on objects; it occurs when these temperatures are present (Ascaso and Casasls, 1986).

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User Gentooboontoo
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