The rock layers contain pollutants that dissolve soil. The rock layers lack water due to extended droughts. The rock layers are compressed forming faults and folds. The rock layers are moved closer to rivers which erode landforms.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Generally, the deeper rock layers of Earth are older than shallower rock layers. How can the collision of two tectonic plates change the order of the rock layers?
Possibilities:
- The rock layers contain pollutants that dissolve soil.
- The rock layers lack water due to extended droughts.
- The rock layers are compressed forming faults and folds.
- The rock layers are moved closer to rivers which erode landforms.

The rock layers are compressed forming faults and folds.