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Which of the following statements is true?


A) Temperature inversions occur when a layer of cold air prevents warm air from rising.
B) Temperature inversions exacerbate pollution problems.
C) Temperature inversions last only a few minutes to a few hours.
D) Normally, cool air near Earth's surface expands and rises, carrying pollutants higher into the troposphere.
E) Temperature inversions help prevent air pollution.

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Primary pollutants from burning coal include all of the following except


A) droplets of sulfuric acid
B) sulfur dioxide
C) suspended solid particles
D) Ozone
E) None of the above

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Which of the following are effects of ozone depletion?


A) increased photochemical smog
B) reduced crop yields
C) immune system suppression
D) reduced phytoplankton populations
E) all of these answers

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Cow belching results in the release of methane, a greenhouse gas.

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Of what value are the oceans in moderating climate change?


A) Oceans remove about 25% to 30% of the atmospheric carbon dioxide produced by humans.
B) Oceans reflect sunlight back into space before the ultraviolet wavelengths are converted into infrared radiation.
C) Oceans absorb about 40% of the methane out of the atmosphere that has been produced by rice paddies and livestock.
D) Oceans help to reduce the level of water vapor in the atmosphere through condensation and transpiration.
E) All of these answers.

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The estimated tipping point of carbon dioxide levels in the atmosphere is ____________________ ppm.

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Which of the following statements about the greenhouse effect is false?


A) The amount of heat trapped in the troposphere depends on concentrations of greenhouse gases.
B) The greenhouse effect is a new theory that explains the warming of the atmosphere.
C) Heat trapped by greenhouse gases keeps the planet warm enough for life.
D) The predominant greenhouse gases are water vapor, carbon dioxide, methane, and nitrous oxide.
E) It has been confirmed by numerous lab experiments and measurements of atmospheric temperatures at different altitudes.

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Acid deposition can affect forests by


A) Leaching out essential plant nutrients
B) Diminishing the supply of Oxygen available to the tree
C) Releasing ions that are toxic to the trees
D) A and B are correct
E) A and C are correct

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____________________ is a colorless gas used in foam insulation and can cause irritation of the eyes, throat, skin, and lungs.

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Match the items listed below with the appropriate choice Match the items listed below with the appropriate choice    -On the atmospheric layers figure, choose the layer that represents part of the middle atmosphere in which temperatures vary greatly with altitude. -On the atmospheric layers figure, choose the layer that represents part of the middle atmosphere in which temperatures vary greatly with altitude.

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The Kyoto Protocol requires that developing nations reduce their greenhouse gas emissions to a level below their 1990 levels.

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A warmer world is least likely to result in


A) decreased food production
B) reductions in biodiversity
C) a rise in sea level
D) more moderate weather
E) spread of tropical diseases

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The Montreal Protocol addresses global CO2 emissions.

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President Barack Obama wants the United States to


A) continue to boycott the Kyoto Protocol
B) lead the way in creating a new international agreement on climate change
C) reduce our carbon emissions to 1990 levels by 2020
D) all of these answers
E) lead the way in creating a new international agreement on climate change and reduce our carbon emissions to 1990 levels by 2020

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If participating nations continue to follow the Montreal Protocol recommendations, ozone levels should return to 1980 levels by the year 2071.

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In the arctic


A) Temperatures have risen twice as fast as the rest of the world during the past 50 years
B) Soot is darkening the ice, causing it to reflect more radiation
C) Sea ice is increasing while land based ice is decreasing
D) A and B are correct
E) None of the above

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Today, the use of other fossil fuels, nuclear power, and hydroelectricity instead of coal has greatly reduced the occurrence of industrial smog.

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____________________ are manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.

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The United States, China, and Russia-three of the world's major emitters-agreed in 2001 to participate in a cap-and-trade program to slow global warming.

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Which of the following can be said about the indoor pollutant styrene?


A) It is found in carpets.
B) It is found in plastic products.
C) It causes kidney damage.
D) It causes liver damage.
E) All of these answers

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