A student wants to model the physical weathering of rock. The student will do a outdoor activity of rock in the site of a perennial river. The river outpour during monsoon and dries during winter.
When a rock is subjected to physical processes like temperature changes or exposure to the effects of wind, rain, and waves, physical weathering takes place. A rock can have fractures where water can seep in and freeze. When this happens, the ice expands and forces the crevices apart.
Temperature, pressure, frost, root movement, and burrowing animals can all cause physical deterioration. For instance, physical weathering will expose more surface area through the use of fractures, speeding up the pace of deterioration.
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