Less sediment would be deposited along the shoreline. Beaches would form from different materials. Sand dunes would become smaller. Deltas would become larger.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A beach is formed when sediment is deposited along a shoreline. What would most likely happen if rivers that empty into the ocean were dammed?
Possibilities:
- Less sediment would be deposited along the shoreline.
- Beaches would form from different materials.
- Sand dunes would become smaller.
- Deltas would become larger.

Less sediment would be deposited along the shoreline.