Which specific type of physical weathering involves the enlargement of cracks in rocks due to the repeated freezing and thawing of trapped water within pore spaces and joints?

💡 Solution & Explanation

Frost wedging occurs because water expands by approximately nine percent when it freezes into ice, exerting immense pressure exceeding the tensile strength of most rock types. Exfoliation is sheeting caused by the unloading of overlying pressure. Salt crystal growth operates in arid environments through the precipitation of saline solutions in rock fractures. Thermal expansion stems from daily temperature fluctuations causing mineral crystals to expand and contract at differential rates.