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You can help save the ozone layer by doing all of the following,except


A) checking your car's air conditioner for leaks.
B) using rigid foam insulation in your home.
C) running your dishwasher only when you have a full load.
D) not buying products that contain CFCs.

E) A) and C)
F) All of the above

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Exposure to ______ can cause headaches,chronic bronchitis,dizziness,fatigue,and death.


A) environnemental tobacco smoke
B) formaldehyde gas
C) carbon monoxide
D) asbestos

E) A) and B)
F) All of the above

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C

Smog is more likely to occur during warm and sunny weather.

A) True
B) False

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Which of the following statements is false regarding factors contributing to population growth?


A) Families in developing countries may have more children to ensure enough survive childhood to work for the household.
B) Half the world's couples do not use any form of family planning.
C) Death rates have decreased in the developing world due to improved public health measures.
D) Poverty and high child mortality rates are associated with low fertility rates in developing countries.

E) None of the above
F) A) and B)

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The key component of smog is


A) sulfur dioxide.
B) particulate matter.
C) carbon monoxide.
D) ground-level ozone.

E) A) and B)
F) C) and D)

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Which of the following is likely to emit the lowest amount of greenhouse gases?


A) an SUV
B) an HEV
C) a conventional midsize car
D) a conventional compact car

E) B) and D)
F) None of the above

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B

The term smog was first used in the early twentieth century to describe the combination of smoke and fog.

A) True
B) False

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High fertility rates in developing countries are associated with poverty and high child mortality.

A) True
B) False

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Environmental tobacco smoke increases the risk of all of the following,except


A) cardiovascular disease.
B) bronchitis.
C) asthma.
D) diabetes.

E) B) and C)
F) All of the above

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When toxic or potentially toxic substances build up in the food chain,the process is called


A) vector transmission.
B) biomagnification.
C) bioloading.
D) radiation sickness.

E) A) and B)
F) A) and C)

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Which of the following statements about air pollution is false?


A) Research has linked exposure to air pollution to reduced birth weight in infants.
B) Air pollution occurs with every pollen bloom.
C) Increased population growth,especially in urban areas,concentrates the problem.
D) Nuclear energy seems to be the solution to air pollution.

E) A) and C)
F) All of the above

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D

The ozone layer in the upper atmosphere


A) shields the earth from the sun's ultraviolet rays.
B) facilitates temperature inversions.
C) maintains the pH of rain.
D) is the key component of smog.

E) A) and D)
F) B) and C)

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Particulate matter is released into the atmosphere by all of the following,except


A) household furnaces.
B) industrial processes.
C) dust from roadways.
D) combustion of fossil fuels.

E) B) and C)
F) A) and D)

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Fluoridation is a water-treatment process designed to disinfect water.

A) True
B) False

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Which one of the following is not one of the four Rs of green consumerism presented in your text?


A) reduce
B) recycle
C) refuse
D) reuse

E) B) and C)
F) A) and D)

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The greenhouse effect is related to


A) acid rain.
B) global warming.
C) ecological homeostasis.
D) smog.

E) C) and D)
F) None of the above

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The form of radiation that poses the most serious risk to human health is ______ radiation.


A) microwave
B) infrared
C) gamma
D) X?ray

E) B) and C)
F) None of the above

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Uyen lives in a state in which the legislature is considering a bill (AB 175)that would allow new roads to be built through a wilderness area.Proponents support the measure because it would allow greater access for recreation and the harvesting of more trees from nonprotected areas that are now difficult for large trucks to reach.Opponents state that the plan will endanger the ecosystem and its wildlife through habitat destruction from road-building and from increased human use and logging.Uyen wishes to write her local representative about this issue.Choose a position,and draft a brief letter that supports it.

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The pain threshold for sound intensity (loudness)is 80 decibels.

A) True
B) False

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Factors that may limit human population growth include all of the following,except


A) energy.
B) available water.
C) food supply.
D) housing.

E) B) and D)
F) B) and C)

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