____ is the breaking down of rocks. ____ is when rock or sediment is moved from one place to another. ____ is the location weathered rocks end up. ____ is caused by wind brushing up against rocks. ____ can cause weathering by rubbing up against rocks. ____ is when water seeps into crevices of a rock and breaks it apart. One example of ____ is when plant roots grow inside the ground and break apart rocks that are under it. An example of ____ is when a chain on a bike starts to rust because of oxygen and water. ____ is caused by factories pumping pollution into the air. ____ changes the chemical composition through water by dissolving it. ____ is when carbonic acid mixes with water and breaks down rocks.

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