Given the question: Process:  - Water seeps into rocks - The water freezes and thaws - Cracks form in the rocks - Cracks also form when rocks heat up - The rocks slowly break down.  suppose If more water filters into the rocks happens, how will it affect it takes longer for rocks to break down.  Which of the following is the supposed perturbation?  - directly impacting a step of the process - indirectly impacting a step of the process - not impacting any step of the process
The answer is:
directly impacting a step of the process