SNC 2D 7.8 Acid Precipitation Read pages 285-290 and answer the following questions. 1. What are some of the things found in air? 2. What did industrialization in the twentieth century result in? 3. What is acid precipitation? 4. How does acid precipitation form? 5. What is another method that acidic substances can reach Earth? Explain. 6. What is sulfur dioxide? 7. What is smelting? 8. What is the reaction that occurs during the process of smelting? 9. What happens to sulfur dioxide when it gets in the atmosphere? 10. How is sulfuric acid formed? 11. What is NOx? 12. Where do most of the nitrogen oxide emissions in North America come from? 13. What does pollution control technology in today’s vehicles do? 14. How is nitrogen dioxide formed? 15. What happens to nitrogen dioxide in the atmosphere? 16. What happens to aquatic life as the pH decreases? 17. How does acid precipitation indirectly affect aquatic life? 18. What does acid precipitation do to soil? 19. What is buffering capacity? 20. Why does limestone have a high buffering capacity? 21. Why does acid precipitation do to trees? 22. What are three economic impacts of acid precipitation? 23. What has happened since 1980? 24. What are the improvements that have been made? 25. What are some encouraging signs from these improvements? 26. What did a 2004 Environment Canada assessment state?