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Release of into the atmosphere is the primary cause of the depletion of the ozone layer.


A) fluorine
B) PCBs
C) ethanol
D) chlorofluorocarbons

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

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Hearing damage can occur after eight hours exposure to sounds louder than:


A) 60 decibels.
B) 70 decibels.
C) 80 decibels.
D) 90 decibels.

E) None of the above
F) All of the above

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Which of the following statements is FALSE regarding air pollution?


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

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

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The pain threshold is:


A) 100 decibels.
B) 110 decibels.
C) 120 decibels.
D) 130 decibels.

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

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The ozone layer in the upper atmosphere


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

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

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The United Nations' Convention on Biological Diversity states that the population's demand for resources already exceeds Earth's capacity by %.


A) 30
B) 20
C) 10
D) 40

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

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B

A major contributor to the loss of biodiversity is


A) population growth.
B) tourism.
C) crop harvesting year round.
D) technology.

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

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A mineral-based compound that was widely used for fire protection and insulation in buildings until the 1980s is:


A) radon.
B) asbestos.
C) fiberglass.
D) spray foam.

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

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The worldwide combustion of fossil fuels resulted in the emission of billion tons of CO2 in 2013.


A) 36.1
B) 52.1
C) 25.6
D) 67.4

E) None of the above
F) All of the above

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In 2000, how many people became ill in Walkerton due to E. coli in the drinking water supply?


A) 2,000
B) 1,000
C) 2,500
D) 5,000

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

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The U.N. projects that world population will reach 8.5 billion by


A) 2020.
B) 2090.
C) 2075.
D) 2030.

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

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One potential drawback with the use of ethanol as an alternative energy source is


A) that it is a non-renewable energy source.
B) that it will increase greenhouse gas emissions.
C) that it cannot be produced in Canada.
D) the diversion of corn crops from the food supply.

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

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The field of environmental health grew out of efforts to control communicable disease.

A) True
B) False

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


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

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

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B

Water is usually disinfected by using


A) chlorine.
B) fluoride.
C) filtration.
D) screening.

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

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A

Which of the following statements is FALSE regarding poverty and health?


A) Asthma is a growing problem in poor families.
B) Studies show that children from wealthy families have higher concentrations of lead in their blood than do children from poor families.
C) Residents living in poor neighborhoods are often exposed to more environmental toxins than residents living in wealthier communities.
D) Poor neighborhoods are common sites for hazardous waste pollution.

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

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UV levels under the Antarctic hole in the ozone layer were high enough to cause sunburn within how many minutes?


A) 15
B) 20
C) 7
D) 30

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

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The respiratory disease most closely associated with asbestos is


A) brown lung disease.
B) bronchitis.
C) lung cancer.
D) black lung disease.

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

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Biological pollutants include all of the following, EXCEPT:


A) paints.
B) animal dander.
C) dust mites.
D) bacteria.

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

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A normal conversation is about:


A) 50 decibels.
B) 60 decibels.
C) 70 decibels.
D) 80 decibels.

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

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