coral reefs that slowly changed size desert sand dunes that were shaped by winds deposits of sediment found at the mouth of a river rock containing fossilized seashells found on a mountaintop
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following provides the best evidence that Earth has evolved over geologic time?
Possibilities:
- coral reefs that slowly changed size
- desert sand dunes that were shaped by winds
- deposits of sediment found at the mouth of a river
- rock containing fossilized seashells found on a mountaintop

rock containing fossilized seashells found on a mountaintop