From this, we can see that both chemical and physical weathering work together to increase rock erodibilty. Breaking a rock through physical weathering increases the effective surface area in which chemical weathering can occur, and through changing the composition of rocks in chemical weathering, the durability of a rocks surface can decrease allowing for it to be more easily removed by physical processes. Below is a diagram that shows the process of ice wedging, a type of mechanical weathering. And also because there is snow and ice all around the rock. ![]() As the temperature reaches zero degrees Celsius/ 32 degrees Fahrenheit the water expands and spreads crack in the rock apart. This is an example of ice wedging, because there are no trees around that proves it is an example of ice wedging. ice wedging See answers Advertisement Advertisement angelsequeira angelsequeira Answer: As rain falls, water seeps into the cracks of the rock. ![]() Physical weathering, also known as mechanical weathering, works along with chemical weathering to efficiently wear down rocks. Ice wedging is common where water goes above and below its freezing point. Ice wedging is when a drop of water falls into a crack in the sidewalk and freezes and makes the crack bigger. \): Mountain regions undergo rapid physical weathering due to wind, ice, and temperature changes. A vertical ice wedge like the one shown is thought to start out as a crack created by contraction of fine-grained soil masses when the ground temperature falls below about 0☏ (-17☌) for a long period.
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