Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain.

Fact 2: Acid rain is precipitation which pH is 5.7 or lower.

Given the two facts above, answer the question "Gases from what causes precipitation where the pH is 5.7 or lower?" with the following options: 
- Condensation
 - aqueous solution
 - streams
 - Pollution
 - evaporation
 - Organic compounds
 - vaporization
 - burning coal


 

        burning coal 