43. $100 How can water cause a river’s banks to change?
44. Water can erode a river’s banks and carry away sediment, making the river wider. Sediment deposited on a river’s banks makes the river narrower. C3-$500
45. $100 The process by which the surface of the Earth gets worn down C4-$100
53. $500 the natural processes that break down and change rock into soil, sand, and other materials; differs from erosion in that no transportation of those materials takes place C4-$500