Environmental Science AP Edition, 12th Edition, (Cunningham)

Chapter 20: Sustainable Energy

Practice Quiz

1
Which of the following is the focus of attention from the biofuels movement?
A)cellulosic ethanol
B)switchgrass
C)algae
D)all of the above
2
Improved insulation, energy efficient windows and curtains, and caulking and sealing cracks could reduce commercial building and household energy loss by up to __________ percent.
A)10
B)20
C)30
D)50
3
Hybrid gas-electric cars appeal to financially stressed and environmentally conscious consumers because such cars
A)are more fuel efficient than conventional cars.
B)greatly reduce production of greenhouse gases compared to conventional cars.
C)save money on fuel.
D)are all of the above.
4
Photovoltaic systems are characterized by all of the following EXCEPT
A)they convert sunlight into electricity.
B)they are difficult to use where conventional electricity is unavailable.
C)they have become more efficient over the past 25 years.
D)they are economically competitive with fossil fuels in many places.
5
The reformer in a fuel cell system
A)provides oxygen for the energy-releasing chemical reactions.
B)extracts hydrogen atoms from a variety of chemical substrates.
C)stores energy much like a battery.
D)does all of the above.
6
Methane is
A)the main component of natural gas.
B)produced by anaerobic digestion of wet organic matter.
C)a fuel that can be derived from animal dung.
D)all of the above.
7
Problems associated with large hydropower dams and reservoirs often include
A)massive dislocation of humans.
B)ecosystem destruction.
C)loss of wildlife.
D)all of the above.
8
Wind power
A)has enormous potential as an energy source.
B)does not contribute to global warming.
C)has no fuel or air emissions costs.
D)is all of the above.
9
Many of the places with the greatest potential for solar and wind development are far from the urban centers where the power is needed.
A)TRUE
B)FALSE
10
Cogeneration refers to
A)production of both electricity and usable steam or hot water by the same facility.
B)cooperative efforts between power producers and consumers aimed at sharing profits from energy sales.
C)sale of electrical power by consumers back to the electrical grid.
D)the production of electricity using several different fuel sources at a single facility.
11
Home appliances in standby mode can account for up to 25 percent of a monthly electric bill.
A)TRUE
B)FALSE
12
The most serious drawback to fuel cells is the expense of providing an oxygen source.
A)TRUE
B)FALSE
13
Wood and charcoal burning is still the main energy source for about 30 percent of the world's population.
A)TRUE
B)FALSE
14
In favorable locations wind power is cheaper than other new energy sources.
A)TRUE
B)FALSE
15
Biomass is a relatively recently discovered energy source.
A)TRUE
B)FALSE
16
Automobiles and light trucks account for ______ of US oil consumption.
A)10%
B)20%
C)40%
D)60%
17
Hydrogen Fuel Cell Vehicles
A)use hydrogen gas for fuel
B)produce water as their only waste product
C)Are currently available in many states
D)1 and 2 are correct
E)All of the above are correct
18
Passive heat absorption refers to
A)the cooling of solar panels used to generate electricity
B)using natural materials to gather and hold heat
C)using water to cool nuclear power plants
D)None of the above
19
Fuel cells produce electrical current
A)as a result of ongoing electrochemical reactions.
B)based on a concept that is over 170 years old.
C)from fuel added to the chemical reaction.
D)Two of the above are correct.
E)All of the above are correct.
20
Geothermal energy
A)capitalizes on the earth's internal temperature
B)is captured by pumping water through underground pipes
C)production has the potential to trigger earthquakes
D)all of the choices are correct
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