geosci102Final+Exam+Practice+Winter08

# geosci102Final+Exam+Practice+Winter08 - Test Version 1 Name...

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Test Version __________________ 1 Name________________ Student #____________ Geological Sciences 102 – Winter 2008 Practice Final Examination (100 pts) This exam consists of 40 multiple choice (2 pts each) and 4 short-answer questions (5 pts each). You must hand in the entire test sheet and answer sheet to get credit for the exam. 1. Pre-industrial levels of CO 2 in the atmosphere were approximately 225 ppmv. Since that time the CO 2 -content in the atmosphere has increased by: a. 10% b. 30% c. 60% d. 90% e. 150% 2. The rise of each 1 ppm of CO 2 in the atmosphere is a result of the emission of: a. 1 GtC b. 2 GtC c. 5 GtC d. 9 GtC e. none of the above 3. How many “wedges” of carbon reduction are required to reduce annual emissions to a level of 7 GtC/y in 2054? a. 1 b. 7 c. 10 d. 20 e. 30 4. A unit of energy is a: a. newton b. joule c. (mass)(acceleration) d. watt e. None of the above 5. One Quad is 10 15 Btu and is equal to approximately how many exajoules? a. One b. Ten c. One hundred d. One thousand e. One hundred thousand 6. The global consumption of energy is approximately?

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Test Version __________________ 2 a. 100 EJ/year b. 500 EJ/year c. 1,000 EJ/year d. 100 Quads/year e. 0.5 EJ/year 7. Considering the major global sources of exergy, which of the following is the least important: a. Radiation from the sun b. Nuclear reactions from uranium c. Crustal thermal energy from radioactive decay d. Hydrocarbons 8. The main source of energy for the generation of electricity is: a. Hydroelectric b. Nuclear c. Natural gas d. Crude oil e. Coal 9. In the United States approximately 100 Quads of energy are consumed each year. The largest proportion of this energy goes into: a. Residential use b. Commercial use c. Industrial use d. Transportation e. None of the above 10. In the United States the primary source for energy production is: a. Nuclear power b. Petroleum c. Natural gas d. Hydroelectric
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geosci102Final+Exam+Practice+Winter08 - Test Version 1 Name...

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