A) radioactive waste.
B) solid waste.
C) sewage.
D) recyclables.
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Multiple Choice
A) taking showers instead of baths.
B) watering lawns and garden plants in mid-afternoon.
C) fixing leaky faucets.
D) not pouring old medicines down the drain.
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A) 1 million
B) 6 million
C) 1 billion
D) 3 billion
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Multiple Choice
A) Russians
B) Europeans
C) Americans
D) Chinese
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True/False
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Multiple Choice
A) is decreasing overall due to technological improvements.
B) will exceed the earth's capacity by 2020.
C) already exceeds the earth's capacity by 20%.
D) can continue to grow without negative consequences.
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Multiple Choice
A) heavy motor vehicle traffic
B) high temperatures
C) sunny weather
D) strong winds
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Multiple Choice
A) Global warming will be evenly distributed around the globe.
B) Oceans will warm more than land areas.
C) High latitudes will warm more than low latitudes.
D) The earth's surface temperature is not expected to increase in this century.
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Multiple Choice
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.
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Multiple Choice
A) reduced birth weight
B) reduced lung capacity in teenagers
C) thickening of the arteries in adults
D) decreased bone density in women
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Multiple Choice
A) heavy metals.
B) high concentrations of water purifiers.
C) high concentrations of fluoride.
D) agricultural chemicals.
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True/False
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Multiple Choice
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.
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True/False
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Multiple Choice
A) Permanent hearing loss can occur from prolonged exposure to sounds above 80-85 decibels.
B) Children may suffer damage to their hearing at noise levels lower than when adults would suffer damage.
C) Permanent hearing loss occurs within the first 2 hours of exposure to sounds above 60 decibels.
D) OSHA sets legal standards for noise levels in the workplace.
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Multiple Choice
A) There is currently enough food produced to feed the world's entire population.
B) About half the world's energy currently comes from renewable sources.
C) It is the driving force behind many recent environmental concerns.
D) High child mortality rates are associated with high fertility rates.
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Essay
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Multiple Choice
A) 50.
B) 100.
C) 150.
D) 300.
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Multiple Choice
A) pollen
B) volatile organic compounds
C) carbon monoxide
D) asbestos
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Multiple Choice
A) filtration.
B) disinfection.
C) chlorination.
D) fluoridation.
Correct Answer
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