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Under which condition is frost action most effective?

Answer and explanation

Correct answer: When temperatures repeatedly rise above and fall below freezing and water is present in cracks

Frost action requires water in cracks and repeated freezing and thawing. Freezing water expands and can exert pressure on the crack walls, so option A is correct.

Related tags

Frost ActionFreeze-ThawPhysical WeatheringWeathering: PhysicalChemicalAnd BiologicalWeathering Physical Chemical And BiologicalGeomorphic ProcessesGeographyClass 11 Mcq

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