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45 Cards in this Set

  • Front
  • Back
Municipal solid wastes includes:
materials thrown away from homes and commercial enterprises
Compared to 1960, the amount of solid waste produced today has increased because:
of population growth and increased use of disposable packaging
A biogas derived from the decomposition of organic material in landfills is:
methane
A drawback to waste-to-energy plants is that they:
produce a variety of difficult to control pollutants
Increased moisture in landfills speeds up decomposition in landfills but also increases:
the production of toxic leachate
Groundwater contamination from landfills is most likely to occur:
from older unlined landfills
Which of the following is true of the decomposition of plastics compared to paper in landfills?
They are non-degradable
Which of the following is true about the siting of landfills today?
Public opposition is often the greatest obstacles in siting new landfills
Which of the following is true concerning combustion as a waste disposal option?
it reduces the weight of trash by 70% and the volume by 90%
Most municipal solid waste in the United States is:
disposed of in landfills
The largest fraction of municipal solid waste is:
paper products
Which of the following best characterizes the make-up of municipal solid waste?
it varies by season, region, and neighborhood
A country's decision to burn municipal solid waste is most related to:
lack of landfill space
Which of the following is NOT a characteristic of modern landfills?
They do not accept plastics
In addition to electricity, the "end products" from waste-to-energy include:
recovered metals, fly ash, and air pollutants
Poisoning of hat workers in the 1800's was found to be caused by their occupational exposure of:
mercury
The law that provides for the identification and clean up of toxic waste sites is
superfund
Heavy metals such as lead, mercury, arsenic, cadmium, and chromium are considered hazardous because they are
toxic
Hazardous wastes have become an increasing threat since the 1950's because
such materials are produced and used in much larger quantities
The most common source of groundwater contamination is:
leaking underground storage tanks (LUST)
Green products can help reduce hazardous wastes in our society because they:
replace household products that contain hazardous chemicals
Which of the following is true of hazardous materials?
the EPA has established criteria for classifying substances as hazardous
Which of the following is true of hazardous materials and the total product life cycle?
They may be present at any stage in the product life cycle
An unintended consequence of regulations that limited the disposals of wastes in air or water was that industry:
shifted waste disposal to landfills
True or false: Currently, the most practical alternative for dealing with waste appears to be reclaim, recover, recycle.
True
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.
True
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
True
True or false: HAZMAT must be labeled from the time it is manufactured until the time of disposal.
True
During the lifespan of a chemical
it may be hazardous or toxic at any stage during its lifetime either in its pure state or combined with other substances
An environmental advantage of deep well injection in contrast to surface disposal is that it:
isolates wastes from the food chain and hydrologic cycle
Which of the following is the major contributor to the formation of acid rain?
Sulfur dioxide
Acid precipitation is likely to have the greatest economic impact on humans through
die offs of forests and aquatic ecosystems
The greenhouse effect refers to
warming of the Earth's atmosphere
The principal gaseous product produced in the combustion of coal, oil, and natural gas is
carbon dioxide
A greenhouse gas which is produced in the stomachs of ruminant animals and is increasing in concentration in the troposphere is
methane
At this point in time, experts feel that the most practical way to cope with depletion of the ozone shield is to
terminate production of CFC's through finding substitutes
Which of the following was true of the band on the use of lead in gasoline?
once banned, lead levels quickly dropped in the population and the environment
Pollutants capable of causing immediate life-threatening physiological illness are said to be
acute
Which of the following states is true about pH and aquatic life?
most species tolerate a relatively narrow range of pH
The major federal law aimed at controlling air pollution is the
Clean Air Act
The most significant source of all major air pollutants is
combustion of fuels and wastes
The most significant source of sulfur dioxide emissions into the atmosphere has been found to be
coal-burning power plants
These are devices which remove air pollutants from emissions
catalytic converters and electrostatic precipitators
The products produced by the combustion and evaporation of hydrocarbons and fossil fuels are called
primary pollutants
What is a common secondary pollutant?
Acids