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45 Cards in this Set
- Front
- Back
Municipal solid wastes includes:
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materials thrown away from homes and commercial enterprises
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Compared to 1960, the amount of solid waste produced today has increased because:
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of population growth and increased use of disposable packaging
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A biogas derived from the decomposition of organic material in landfills is:
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methane
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A drawback to waste-to-energy plants is that they:
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produce a variety of difficult to control pollutants
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Increased moisture in landfills speeds up decomposition in landfills but also increases:
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the production of toxic leachate
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Groundwater contamination from landfills is most likely to occur:
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from older unlined landfills
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Which of the following is true of the decomposition of plastics compared to paper in landfills?
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They are non-degradable
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Which of the following is true about the siting of landfills today?
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Public opposition is often the greatest obstacles in siting new landfills
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Which of the following is true concerning combustion as a waste disposal option?
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it reduces the weight of trash by 70% and the volume by 90%
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Most municipal solid waste in the United States is:
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disposed of in landfills
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The largest fraction of municipal solid waste is:
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paper products
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Which of the following best characterizes the make-up of municipal solid waste?
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it varies by season, region, and neighborhood
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A country's decision to burn municipal solid waste is most related to:
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lack of landfill space
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Which of the following is NOT a characteristic of modern landfills?
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They do not accept plastics
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In addition to electricity, the "end products" from waste-to-energy include:
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recovered metals, fly ash, and air pollutants
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Poisoning of hat workers in the 1800's was found to be caused by their occupational exposure of:
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mercury
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The law that provides for the identification and clean up of toxic waste sites is
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superfund
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Heavy metals such as lead, mercury, arsenic, cadmium, and chromium are considered hazardous because they are
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toxic
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Hazardous wastes have become an increasing threat since the 1950's because
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such materials are produced and used in much larger quantities
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The most common source of groundwater contamination is:
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leaking underground storage tanks (LUST)
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Green products can help reduce hazardous wastes in our society because they:
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replace household products that contain hazardous chemicals
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Which of the following is true of hazardous materials?
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the EPA has established criteria for classifying substances as hazardous
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Which of the following is true of hazardous materials and the total product life cycle?
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They may be present at any stage in the product life cycle
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An unintended consequence of regulations that limited the disposals of wastes in air or water was that industry:
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shifted waste disposal to landfills
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True or false: Currently, the most practical alternative for dealing with waste appears to be reclaim, recover, recycle.
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True
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True or false: Even though there are mandated allowable levels of toxic chemicals that may be contained in drinking water, no one knows with certainty how much constitutes a harmful level.
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True
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True or false: One of the problems with landfills is that the drums holding chemicals may corrode and result in an unwanted reaction between antagonistic chemicals
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True
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True or false: HAZMAT must be labeled from the time it is manufactured until the time of disposal.
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True
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During the lifespan of a chemical
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it may be hazardous or toxic at any stage during its lifetime either in its pure state or combined with other substances
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An environmental advantage of deep well injection in contrast to surface disposal is that it:
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isolates wastes from the food chain and hydrologic cycle
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Which of the following is the major contributor to the formation of acid rain?
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Sulfur dioxide
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Acid precipitation is likely to have the greatest economic impact on humans through
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die offs of forests and aquatic ecosystems
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The greenhouse effect refers to
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warming of the Earth's atmosphere
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The principal gaseous product produced in the combustion of coal, oil, and natural gas is
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carbon dioxide
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A greenhouse gas which is produced in the stomachs of ruminant animals and is increasing in concentration in the troposphere is
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methane
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At this point in time, experts feel that the most practical way to cope with depletion of the ozone shield is to
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terminate production of CFC's through finding substitutes
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Which of the following was true of the band on the use of lead in gasoline?
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once banned, lead levels quickly dropped in the population and the environment
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Pollutants capable of causing immediate life-threatening physiological illness are said to be
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acute
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Which of the following states is true about pH and aquatic life?
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most species tolerate a relatively narrow range of pH
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The major federal law aimed at controlling air pollution is the
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Clean Air Act
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The most significant source of all major air pollutants is
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combustion of fuels and wastes
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The most significant source of sulfur dioxide emissions into the atmosphere has been found to be
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coal-burning power plants
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These are devices which remove air pollutants from emissions
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catalytic converters and electrostatic precipitators
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The products produced by the combustion and evaporation of hydrocarbons and fossil fuels are called
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primary pollutants
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What is a common secondary pollutant?
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Acids
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