Question

what is the primary difference between weathering and erosion?
weathering involves chemical changes while erosion is only physical
weathering breaks down rock in place while erosion transports material
weathering occurs quickly while erosion is a slow process
weathering only affects soil while erosion affects all earth materials
the process of material being moved from one location to another by agents such as water, wind, or ice is called:
weathering
mass movement
erosion
soil formation
which agent of erosion is primarily responsible for the formation of sand dunes?
running water
wind
glaciers
gravity

Explanation:

• For the first question: Weathering is the breakdown of rocks in place (can be physical or chemical), while erosion is the transportation of materials. The first option is wrong as weathering can be physical too. The third option is wrong as both can be slow or fast. The fourth option is wrong as weathering affects rocks (not just soil).
• For the second question: Erosion is defined as the movement of materials by agents like water, wind, or ice. Weathering is breakdown, mass movement is a type of erosion but not the general term for movement by those agents, soil formation is a different process.
• For the third question: Wind is the agent that primarily forms sand dunes by moving sand particles. Running water forms features like rivers and valleys. Glaciers form features like U - shaped valleys. Gravity causes mass movement but not specifically sand dunes.

Answer:

1. Weathering breaks down rock in place while erosion transports material.
2. Erosion
3. Wind