ENSVTY 101, fal 17 Exam 3-green 2/5 100 may be as 37. Scientists studying climat
ID: 121566 • Letter: E
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ENSVTY 101, fal 17 Exam 3-green 2/5 100 may be as 37. Scientists studying climate change estimate the average global sea level rise by the year 2 much as inches or higher. b, 6 c. 39 d. 50 38. a. a steady warming trend b. prolonged Which phrase best describes the earth's average surface temperature for the past 900,000 years? periods of cooling and warming c. fairly steady temperatures until recently d. fairly steady with a recent cooling trend 39. Major climate models predict 2100 a. a 2- to 4.5-degree C rise in Earth's mean surface temperature by b. increased CO, absorption by the world occans as temperature rises c. the falling of global sea levels d. lower temperature rises after 2200 40. Climate models predict that global warming will be most severe in a. Euro-Asia Af b. the Middle East d. Africa c polar regions d. 41. How does the timing of CO: changes in the atmosphere correspond to temperature changes? a. Temperatures change first, and CO; levels lag behind. b. CO; levels change first, and temperatures lag behind. c. CO; levels and temperatures always change at exactly the same time. d. As CO: levels decrease, temperatures increase. 42. In order from the most important to least important, the three factors responsible for the increase in greenhouse gas concentrations are a. burning fossil fuels, deforestation, and agriculture b. burning fossil fuels, agriculture, and deforestation c. deforestation, burning fossil fuels, and agriculture d. deforestation, agriculture, and burning fossil fuels in 2013 About how many years will it take before carbon dioxide now in the atmosphere will be removed by c. 1000 Carbon dioxide rates reached a level of 43. a. 332 ppm b. 360 ppm c. 390 ppm d. 400 ppm 44. natural processes? a. 150 b. 500 d. 2000 45. Which of the following molecules has the longest atmosphere lifetime? a. ozone (O) b. nitrous oxide (N 0) c. carbon dioxide (CO;) d. methane (CHa) 46. Each nitrous oxide molecule (N20) has times stronger a warming potential than does a carbon dioxide molecule b. 83 d. 300 a. c. 47. The greenhouse effect a. is a blanket of warm air in the troposphere that makes the earth habitable b. occurs when energy absorbed by the earth radiates into the atmosphere to cause warming c. is caused by solar radiation warming the earth's atmosphere d. accelerates the warming of the earth's atmospherExplanation / Answer
c. 39 inches . In 2013, the body projected that for the same high-end emissions scenario used in the current study, sea level rise by the year 2100 would be between 0.52 and 0.98 meters (1.7 and 3.22 feet), ( 20 and 39 inches)
38.b. prolonged periods of cooling and warming
39 . a. 2- to 4.5-degree centigrade rise in earth's mean surface temperature by 2100
40. polar regions.- Ice will melt in the polar regions.
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