Erosion in the movement of solids such as soil, sediment, and rock in the environment, and it usually occurs do to transport by wind, water, or ice. (http://en.wikipedia.org/wiki/Erosion). We saw a lot of erosion when we were in the Wissahickon Park. An example of erosion is the soil that was washed a crossed the road. Another example of erosion is a dent that was made in the ground from water.
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