Question

While standing near a river, a student noticed small rocks colliding with larger rocks, causing small pieces to break off and be carried
downstream. What processes is the student observing?
A. The small rocks are chemically weathering the larger rocks and erosion is moving the pieces downstream.
B. The small rocks are chemically weathering the larger rocks and deposition is moving the pieces downstream.
C The small rocks are mechanically weathering the larger rocks and erosion is moving the pieces downstream.
D. The small rocks are mechanically weathering the larger rocks and deposition is moving the pieces downstream.

Answer 1

C. The small rocks are mechanically weathering the larger rocks and erosion is morning the pieces downstream

There is no chemical change in this so it has to be mechanically. Than erosion is causing the rocks to be moving the pieces downstream. Deposition means another thing...