APES
A family of five recently replaced its 5-gallon-per-minute showerheads with water-saving 2-gallon-per-minute showerheads. Each member of the family averages 8 minutes in the shower per day. In a 30-day period, how many fewer gallons of water will the family use with the new showerheads?
3,600
Approximately 60 percent of municipal solid waste in the United States is composed of some form of organic matter that could be composted. Every American generates approximately 2 kg of waste every day. The amount of compostable waste that could be generated by one individual in a week would be closest to
8.4 kg
Which of the following describes a component of a modern sanitary landfill?
A bottom liner of plastic or clay to prevent groundwater contamination
Important factors that contribute to smog formation in the Los Angeles basin include which of the following?
Ample summer sunshine and High concentration of automobiles
Which of the following is a primary air pollutant produced from burning coal?
Carbon monoxide
how is coal formed
Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests. Layers of dirt and rock covered the plants over millions of years. The resulting pressure and heat turned the plants into the substance we call coal.
Which of the following energy sources produces the most air pollutants when used during the generation of electricity?
Fuel oil
which of the following would result in the largest reduction in volume of municipal solid waste disposed of in landfills?
Introduce composting programs for yard trimmings and food waste
what best describes one way the Clean Air Act helped reduce air pollution?
Introduced regulatory measures to control the amount of lead in fuels
Of the following, which is the most serious immediate problem associated with sanitary landfills?
Leachate contamination of groundwater
Which of the following best explains the pattern in NO concentration?
NO is produced by rush-hour traffic and is quickly oxidized in the atmosphere.
Which of the following is a common component of photochemical smog and is a reddish-brown gas with a pungent odor?
Nitrogen dioxide, NO2
Which of the following is an effective alternative to chlorine for disinfecting wastewater in a municipal treatment plant?
Ozone
Step P. Water is passed through a screen to remove debris. Step Q. Pathogenic organisms are killed by chlorination, UV, or ozone. Step R. Suspended particles clump and settle out. Step S. A floccing agent, such as alum, is added to the water. The processes described above are steps in the purification and treatment of municipal wastewater. The steps are listed in random order. Which of the following lists the steps in the correct sequence?
P → S → R → Q
Which of the following correctly orders the methods of solid-waste management in terms of energy required? least energy to most energy
Reduce Reuse Recycle
Which of the following best explains the cause of the trend shown in the graph for lead emissions in the United States from 1970 to 2011
Unleaded gasoline was first introduced in 1974, and amendments to the Clean Air Act required cars with the model year 1975 or later to use only unleaded gasoline.
how do you measure amps
W=AxV
Which of the following is the best example of gray water?
Water that has been used for bathing and for washing clothes
Which of the following identifies an unintended result from recycling programs?
When items are placed in recycling that cannot be recycled, the cost of recycling increases.
what are tragedy of the commons
an economic problem where the individual consumes a resource at the expense of society
what are the four types of coal
anthracite, bituminous, subbituminous, and lignite
Which type of electricity-generating power plant releases radioactive materials as well as toxic metals such as lead and arsenic under normal operating conditions?
coal burning
Most plastics pose a special problem in the waste stream because they
decompose slowly, if at all, and persist as solid waste
Many homeowners are unaware that their garbage may contain hazardous waste, which should be taken to a designated hazardous waste dump site instead of being placed in their regular trash. All of the following are considered household hazardous waste EXCEPT
food scraps
decompose slowly, if at all, and persist as solid waste
landfilling
(A) Sulfur dioxide (B) Lead (C) Ozone (D) Hydrocarbons (E) Particulates Implicated in human neurological damage
lead
Ground-level ozone in most major United States cities results primarily from
motor-vehicle exhaust
This process uses chlorine, ultraviolet radiation, or ozone as part of the disinfection of wastewater.
release to environment
electricity is a _______ of energy
secondary source
what are the three lenses
social, economic and environmental
A sustainable society would emphasize
using energy efficiently and reusing and recycling matter
Large objects, such as sticks and rocks, are screened out and removed during this process.
waste water
which of the following materials would be best suited for incineration to reduce total volume, produce energy, and have minimal release of air pollutants?
wood