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Unformatted text preview: Geol 108 10/12 Notes 18:00 Clicker Questions: 1. Chlorofluorocarbons release dangerous levels of fluorine and chlorine forming acid rain. False -chlorofluorocarbons (CFCs) break down in upper stratosphere, by ultraviolet radiation 2. Upper atmospheric ozone is created by lightning. False -created by sunlight, part of the absorption of UV radiation -lightning makes ozone in the lower atmosphere 3. CFCs and methyl bromide breakdown in the upper atmosphere releasing CL and Br which in turn destroy ozone. True 4. Upper atmospheric ozone accumulates from smog that rises from near the ground. False -ground level ozone does not rise -upper atmosphere ozone formed separately, gets absorbed 5. CFCs…include he compound “Freon”; are concentrated at high stratospheric levels above polar regions, used as refrigerant, have been used in the making of...
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This note was uploaded on 01/05/2011 for the course GEOL 108 at USC.