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Unformatted text preview: Grodin, Micah Webquiz 2 Due: Oct 28 2005, 11:00 pm Inst: Sara Sutcliffe This print-out should have 5 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. THIS IS DUE BY 11PM FRIDAY OCT 28 001 (part 1 of 1) 10 points Which of the following types of electromagnetic radiation can be absorbed by O3 ? 1. Only UV-B, UV-C, and Infrared 6. II and IV only 2. Only UV-B, and UV-C 7. I, II, and III only 3. UV-A, UV-B, UV-C, and Infrared 8. II and III only 4. Only UV-A, and UV-B 9. II, III, and IV only 5. Only UV-A, UV-B, and UV-C 10. None of the characteristics 002 (part 1 of 1) 10 points Which explanation accounts for the fact that, on average, cloudy nights are warmer than clear nights? 1. Clouds have a high concentration of carbon dioxide from fossil fuel combustion. 2. H2 O does not absorb infrared energy. 3. Clouds reflect light incoming from the moon. 4. Clouds are composed of water vapor and H2 O is a strong greenhouse gas. 003 (part 1 of 1) 10 points Which of the characteristics I) The concentration of stratospheric ozone is declining; II) Heat energy radiated by the earth is captured by atmospheric molecules; III) Increased skin cancer incidence and damage to radiation sensitive species has been observed; IV) Possible consequences include altered climate and increased sea level. 1 pertain(s) to the problem of global warming? 1. All of the characteristics 2. I and IV only 3. I and III only 4. III and IV only 5. I and II only 004 (part 1 of 1) 10 points What ozone damaging free radical is formed when CFCs are hit by a high energy photon? 1. a fluorine atom 2. a hydroxyl radical 3. a hydrogen atom 4. a chlorine atom 005 (part 1 of 1) 10 points Determine the percent composition for C2 H5 COOH. 1. 47.46% C, 7.47% H, 45.07% O 2. 45.87% C, 12.57% H, 41.56% O 3. 48.63% C, 8.18% H, 43.19% O 4. 34.87% C, 9.07% H, 56.06% O 5. 33.46% C, 13.28% H, 53.26% O ...
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This test prep was uploaded on 04/07/2008 for the course CH 304k/305k taught by Professor Sutcliffe during the Fall '05 term at University of Texas.
- Fall '05