1. cause and effect
A cid rain is formed when certain gases dissolve in rainwater to form acids. Acid rain by definition in the Chemistry book states: "Rainwater that has become excessively acidic because of absorption of pollutant oxides, notably SO3, produced by human activities"(1). There are airborne pol...
- Word Count: 754
 - Approx Pages: 3
 - Grade Level: High School