Across
- 2. : Ion produced when acids dissolve in water.
- 5. : Rainwater contaminated by acidic pollutants.
- 8. : Gas produced from burning fossil fuels.
- 9. : Process where sulfur dioxide is converted to sulfur trioxide.
- 10. : Gas released when limestone reacts with acid rain.
- 11. : Building material made mainly of calcium carbonate.
Down
- 1. : Radiation used in spectroscopy to identify sulfur dioxide.
- 3. : Solid sulfate formed when limestone reacts with sulfuric acid.
- 4. : Acid rain has a pH lower than this number.
- 6. : Acid formed when sulfur dioxide oxidises in the atmosphere.
- 7. : Wearing away of buildings due to chemical reaction.