Environmental Hazard #1: Extreme Temperatures and UV rays The dangers of UV: (a short note) : UV (ultraviolet light) -Is an electromagnetic (EM) wave of energy and is part of the EM spectrum. -is HIGHER energy than visible light -Causes skin to tan and sunburn, increasing the risk of skin cancer Figure 1: EM spectrum -helps the body produce vitamin D (so you do need a little of it) In the box below write what you already know about The Ozone: How do you think the ozone affects our climate on planet earth? _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ Using “Nelson Science Perspectives 10” p331-332, answer the following questions: 1. What are two kinds of damage the sun can do to living things? 1. 2. 2. Write the chemical formula for Ozone in the box below: 3. What does the Ozone do with UV (ultraviolet) radiation from the sun? 4. What did Scientists notice about the ozone layer in the 1970s and then again in the 1990s? 5. What are CFCs? 6. Where do CFCs come from? 7. How do CFCs destroy the ozone layer? 8. What is the Montréal protocol?