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Under which condition will frost weathering be most effective?

Answer and explanation

Correct answer: An area where water repeatedly freezes and thaws in rock cracks

In frost weathering, water in rock cracks expands when it freezes. Repeated freezing and thawing increases pressure in the cracks and gradually breaks the rock. Therefore, option C is correct. Cold conditions alone are not sufficient; water and repeated freeze-thaw cycles are both needed. Exam tip: identify frost weathering through the clues ‘water + cracks + repeated freezing and thawing’.

Related tags

Frost WeatheringFreeze ThawPhysical WeatheringGeomorphic ProcessesRock DisintegrationWeathering: PhysicalChemicalAnd BiologicalWeathering Physical Chemical And BiologicalGeography

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