Name: Class: Date: 6. Most air pollution is produced by a. thermal inversions. c. ozone layer depletion. b. fuel burning. d. volcanic eruptions.

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1 Name: Class: Date: Air Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is often used to remove poisonous gases from industrial emissions before they are released into the atmosphere? a. catalytic converters c. electrostatic precipitators b. scrubbers d. crushed limestone 2. Schools in the United States have spent over $40 billion to remove a. non-water-based paint. c. volatile organic compounds. b. carbon dioxide. d. asbestos. 3. Which of the following contributes most to acid precipitation? a. burning of fossil fuels c. radon and ozone b. ethanol d. All of the above 4. As a lake becomes more acidic, fish are harmed not only by the acidity but also by substances that leach out of the soil into the water. Which of these toxic substances is leached when conditions are acidic? a. copper c. calcium b. iron d. aluminum 5. Most of the pollution that causes acid precipitation to fall in southeastern Canada is released from a. Mexico. b. central Canada. c. the midwestern and eastern United States. d. the southern United States. 6. Most air pollution is produced by a. thermal inversions. c. ozone layer depletion. b. fuel burning. d. volcanic eruptions. 7. A true statement about carbon monoxide is that it a. can lower the level of oxygen carried in the blood. b. is a less harmful pollutant than carbon dioxide. c. may cause headaches but not death. d. has no effect on fetal development. 8. Which air pollutants can aggravate bronchial asthma in humans and cause fish to suffocate? a. natural substances such as mold and fungi b. acids formed from nitrogen compounds c. particulates produced by forest fires d. VOCs released during industrial processes 9. Temperature inversions work to trap pollution when a. cool air above keeps warmer air at the surface from moving upward. b. cool air above keeps warmer air at the surface from absorbing solar radiation. c. warm air above keeps cooler air at the surface from absorbing solar radiation. d. warm air above keeps cooler air at the surface from moving upward. 1

2 Name: 10. Which of the following activities is the largest producer of primary air pollutants in the United States? a. electricity production c. transportation b. healthcare d. agriculture 11. Light pollution can be decreased by a. directing lighting downward. b. lighting billboards from below. c. using incandescent light bulbs. d. increasing the number of lights per block on a city street. 12. Climate in a region is a. the long-term, prevailing atmospheric conditions. b. determined only by seasonal daylight hours. c. the atmospheric conditions on a given day. d. never affected by ocean currents. 13. Which of the following correctly states an observation that helps to explain circulation patterns in the atmosphere? a. Cold air rises and warms as it rises. b. Warm air rises and cools as it rises. c. Cold air can hold more water vapor than warm air. d. All of the above 14. Which of the following best describes measurements of CO 2 levels in the atmosphere since 1958? a. Levels of CO 2 were steady until the mid-1970s, when they began to increase rapidly. b. Measurements of CO 2 have shown a steady increase since accurate measurements began. c. CO 2 levels are higher in winter and lower in summer, but the winter highs have increased each year and the summer lows have not fallen as far. d. CO 2 levels are higher in winter and lower in summer, but the winter highs are higher each year and the summer lows are lower each year. 15. Which of the following best describes the effect of a mountain range on the climate of a region? a. The coastal side of the range usually has high levels of rain. b. A desert is often found on the inland side of the range. c. Average temperatures are lower at high elevations than at the base of the mountains. d. All of the above 16. Latitude strongly influences climate because _ solar energy falls on areas that are closer to the equator than to the poles. a. less c. more b. the same amount of d. sometimes less 17. Which of the following does not address how oceans affect climatic conditions on land? a. Water cools Earth because it reflects the most sunlight. b. Oceans are the source of most water that falls as precipitation. c. Coastal areas have more moderate climates than inland areas. d. Ocean currents redistribute warm and cold masses of water. 2

3 Name: 18. Which of the following would occur if Earth were not tilted relative to the plane of its orbit? a. Temperatures at the equator would become too hot to sustain life. b. Temperate regions would no longer have seasonal changes in climate. c. All parts of Earth would receive sunlight of equal concentration. d. Polar ice caps would melt due to a rapid increase in global warming. 19. The critical difference between today s global warming and Earth s previous climate changes is that a. human-made chemicals such as CFCs do not influence global warming. b. previous changes in climate were dramatic but very short-lived. c. scientists can now save all species from extinction by genetic engineering. d. global warming may occur much more rapidly than it did during previous climate changes. 20. Chlorofluorocarbon molecules are environmentally significant because a. their chlorine atoms can destroy many stratospheric ozone molecules. b. they are poisonous, flammable, and corrosive to metals. c. their absorption of lethal solar energy protects Earth. d. they readily break down ozone molecules produced as pollution. 21. Ultraviolet radiation is particularly dangerous because a. it can damage genetic material in cells. b. little has been done to save the ozone layer. c. it always leads to the rapid death of organisms. d. All of the above 22. The average global temperature has _ during the 20th century. a. remained the same b. increased every year c. risen some years and fallen others, but has increased overall d. risen some years and fallen others, but has decreased overall 23. Which of the following would not be a consequence of a rise in global temperature? a. rising sea level b. increased polar ice mass c. increased frequency of major storms d. increased frequency of major droughts 24. During summer in the Southern Hemisphere, the Northern Hemisphere experiences a. a tilt toward the sun. c. summer. b. winter. d. excess rainfall. 25. As the amount of ozone in the stratosphere decreases, a. more ultraviolet light is able to reach Earth s surface. b. less solar energy is able to reach Earth s surface. c. the amount of methane in the atmosphere increases. d. the amount of phytoplankton in the ocean increases. 3

4 Air Test Answer Section MULTIPLE CHOICE 1. ANS: B PTS: 1 DIF: 1 REF: 1 2. ANS: D PTS: 1 DIF: 1 REF: 2 3. ANS: A PTS: 1 DIF: 1 REF: 3 4. ANS: D PTS: 1 DIF: 1 REF: 3 5. ANS: C PTS: 1 DIF: 1 REF: 3 6. ANS: B PTS: 1 DIF: 1 REF: 1 7. ANS: A PTS: 1 DIF: 1 REF: 1 8. ANS: B PTS: 1 DIF: 1 REF: 2 9. ANS: D PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: D PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: 2 1

5 21. ANS: A PTS: 1 DIF: 1 REF: ANS: C PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: B PTS: 1 DIF: 1 REF: ANS: A PTS: 1 DIF: 1 REF: 2 2

6 Air Test [Answer Strip] _ A 10. _ B 18. _ A 11. _ B 1. _ D 19. _ D 2. _ A 12. _ A 20. _ A 3. _ B 13. _ D 4. _ A 21. _ C 5. _ C 14. _ C 22. _ B 6. _ D 15. _ B 23. _ A 7. _ C 16. _ B 24. _ B 8. _ A 17. _ A 25. _ D 9.

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