Q:Process:  - Chemicals like sulfur dioxide and nitrogen are released into the air - These substances rise into the high atmosphere - They react with water and oxygen - This creates a more acidic rain - The rain with the high acid content falls.  Perturbation hypothesis: suppose more coal is removed happens, how will it affect MORE damage by acid rain.  Does the supposed perturbation have an effect (direct or indirect) on the process?
A:
no