Some rock layers are very thick. Some species have become extinct. Marine fossils are found in mountain areas. Igneous rock is found on all tectonic plates.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The surface of Earth is constantly changing. Which of these findings provides the best evidence that the crustal surface of Earth has changed over time?
Possibilities:
- Some rock layers are very thick.
- Some species have become extinct.
- Marine fossils are found in mountain areas.
- Igneous rock is found on all tectonic plates.

Marine fossils are found in mountain areas.