A) Land dedicated to agricultural production is unavailable for construction of wind farms.
B) New transmission lines must be constructed to connect windy rural areas with larger grids.
C) The large, spinning blades of wind turbines alter the microclimate on farms, affecting crops.
D) All of these are correct.
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A) cogeneration
B) fission
C) combustion
D) fusion
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A) It requires a sufficient minimum flow to provide a reliable source of power.
B) Flooding large areas to create reservoirs displaces local ecosystems.
C) The concrete barriers trap water sediments and impede fish spawning.
D) It presents a greater risk of a catastrophic failure from collapsing dams.
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As a biofuel, ethanol production uses re...View Answer
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A) fission.
B) variable generation.
C) cogeneration.
D) geothermal power.
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A) Heat pump systems circulate air underground where the temperature is constant.
B) The steam from deep wells is piped throughout buildings to provide heat.
C) Deep wells bring hot water to the surface to turn a steam turbine and generate electricity.
D) All of these are correct.
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A) Electric vehicles are powered by an electric motor using a magnetic field to generate motion.
B) Electric vehicles use about 80% of the energy that they create.
C) Electric vehicles make up less than 1%of passenger cars in the United States.
D) All of these are correct.
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The availability of a variable energy re...View Answer
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A) Approximately 35% of the electricity produced at power plants is lost through its transmission over long transmission lines.
B) Once electricity is produced, it is moved around on the grid to meet demand, but for the most part it cannot be saved for later use.
C) The current microgrid technology cannot deliver electricity to essential facilities during blackouts, storms, and other disasters.
D) All of these are correct.
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B
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A) All three of these energy sources can provide a constant, reliable supply of electricity.
B) All three of these energy sources are growing faster than wind and solar.
C) All three of these energy sources are nondepletable, nonpolluting sources of electricity.
D) All of these are correct.
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A) uranium
B) oil
C) coal
D) natural gas
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A) natural gas
B) biofuel
C) petroleum
D) electricity
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Student answers will vary. Possible resp...View Answer
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A) photovoltaic solar panel; mining of rare earth minerals for semiconductors
B) wind turbine; large blades of turbines are responsible for bird and bat kills
C) concentrated solar thermal plant; habitat disruption from the installation of a large array of mirrors
D) All of these are correct.
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A) Home insulation materials slowly collect heat during the day and release it at night.
B) Liquids in a "power tower" heated by the Sun are used to generate steam and electricity.
C) The photovoltaic cell of a solar calculator uses sunlight to directly produce electricity.
D) None of these are correct.
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A) The fuel cells are used to power internal combustion engines rather than electric motors.
B) The electricity used to supply the fuel cells with hydrogen is produced using fossil fuels.
C) The combined exhaust emissions from fleets of buses equipped with fuel cells generates smog.
D) None of these are correct.
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A) fission of uranium atoms.
B) water moving through a dam.
C) heat from the Sun using mirrors.
D) heat from below Earth's surface.
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A) In the United States, the radioactive waste from all nuclear power plants is stored at Yucca Mountain, Nevada.
B) Cooling towers at nuclear power plants emit carbon dioxide, nitrogen oxide, sulfur dioxide, ash, and particulates.
C) For nuclear power, neutrons split the nuclei of uranium atoms to release the energy needed to heat water and create steam.
D) All of these are correct.
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A) combust municipal waste along with coal or natural gas in order to produce electricity.
B) use the wasted thermal energy from electricity production as a source of heating or cooling.
C) produce hydrogen fuel cells using electricity that is generated by renewable sources.
D) couple traditional fossil fuels with intermittent power sources such as wind.
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B
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A) funding the development of higher-voltage smart-grid transmission lines
B) undertaking research directly and in partnership with various institutions
C) offering assistance to alternative energy companies through stimulus grants
D) All of these are correct.
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D
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