Final answer:
Weathering is the breakdown of rocks into smaller pieces, whereas erosion is the movement of these weathered materials away from their original location. So the correct option is C.
Step-by-step explanation:
Lori is learning about weathering and erosion and needs to explain how they are different. The correct answer is C, which states that weathering is the breaking down of rocks and erosion is the movement of weathered materials. Weathering includes the mechanical and chemical processes that break down rocks into smaller pieces, leading to the creation of soil and sediments. Erosion, on the other hand, refers to the transport of these weathered materials by natural forces such as water, wind, and ice. When rocks and soil are moved from one place to another by erosion, they can form various features on the Earth's surface like river valleys or caves.