One of the most effective mechanisms for physical weathering is

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Frost wedging is a highly effective form of physical weathering where water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart. This process does not involve chemical changes, distinguishing it from options like hydrolysis and oxidation, which are chemical weathering processes. Hydration involves the absorption of water into the mineral structure, which can lead to expansion and weathering, but frost wedging is more universally recognized for its effectiveness in physical weathering.

One of the Most Effective Mechanisms for Physical Weathering Is