Chapter 21 Multiple Choice Questions (Answers)
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Transcript of Chapter 21 Multiple Choice Questions (Answers)
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21.1 Sources of renewable energy, and potential for growth
Currently, the fastest-growing source of electricity generation using new renewable sources is ________.
solar
wind
hydro
natural gas
coal AnB
Diff: 1
Ob21.1 Sourc
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Right behind the correct answer in the preceding question as the second fastest-growing source is ________.
solar
wind
hydro
natural gas
coal AnA
Diff: 1
Ob21.1 Sources of renewable energy, and potential for growth
The
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those who believe human health is impacted by smog and pollution
those who believe fossil fuel dependence is suicide because it makes us vulnerable to the Middle East
concerns over diminishing fossil fuel supplies and negative environmental impacts of fossil fuel
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One of the obstacles to the rapid replacement of nonrenewable energy sources with renewable energy sources is ________.
the improvement in the infrastructure for using renewable energy sources
the lack of government and private
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rooftop solar panels
OTEC
photovoltaic cells
rooftop flat-plate solar collectors AnA
Diff: 1
Ob21.2 Solar energy: how harnessed, advantages, disadvantages
Solar represents a minuscule portion of U.S. energy production because of ________.
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poor outlook for potential for this energy source
potential for pollution from this source of energy AnB
Diff: 1
Ob21.2 Solar energy: how harnessed, advantages, disadvantages
A major advantage of solar power is that ________.
cost is prohibitive
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E Diff: 1
21.2 Solar energy: how harnessed, advantages, disadvantages
A major disadvantage of solar power is ________.
its cost-effectiveness compared to other types of power
its efficiency level compared to other types of power
the varia
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21.2 Solar energy: how harnessed, advantages, disadvantages
10)
Prior to 1950, the main use of windmills in the United States was for ________.
energy generation
grinding grain for bread
pumping water for irrigating crops
draining
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higher, to minimize turbulence and maximize wind speed
lower, to minimize turbulence and maximize wind speed
higher, to minimize the number of birds that interfere with blade turning
lower, to increase heat convection from the ground
highe
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that people can use a single mill or develop a large--scale wind farm
the initial startup cost
that land can be leased for wind power development
D Diff: 2
21.3 Wind energy: how harnessed, advantages, disadvantages
13)
A major obstacle to the
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the lack of large land areas needed to construct wind farms
B Diff: 1
21.3 Wind energy: how harnessed, advantages, disadvantages
14)
Offshore wind farms are being seriously considered because ________.
they are more aesthetically pleasing
they do
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21.3 Wind energy: how harnessed, advantages, disadvantages
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15)
The current practice of geothermal power generation may not provide a practical renewable energy source because ________.
in many cases, the heated groundwater is used much faster than it is recharged
in many cases, the magma is
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motion of currents, waves and tides; ocean thermal energy
solar reflection
lightning strikes in salt water
magnetic field generators
B Diff: 2
21.5 Ocean energy: how harnessed, advantages, disadvantages
17)
One major reason for the
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the lack of technological advancement
the lack of political support
A Diff: 2
21.5 Ocean energy: how harnessed, advantages, disadvantages
18)
The largest problem with adopting the new technology of renewable resources is ________.
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evaluating the scientific and economic impacts
that the start-up costs are high
that long-term maintenance costs are higher than those for fossil fuels
that technological advances have not been made in the last 30 years to meet our energy needs
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21.1 Sources of renewable energy, and potential for growth
20)
Fuel cell technology has been used in the United States since the 1960s because ________.
it was originally slated for use in cars by Ford
it was used widely in NASA's spaceflight
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is not properly understood
is less efficient than fossil fuels
requires a fuel that is a nonrenewable resource
requires an energy investment to begin the process
has highly volatile and dangerous components
D Diff: 1
21.6 Hydrogen
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how the hydrogen is extracted
governmental incentives for research
this is not correct; hydrogen is always cleaner
C Diff: 1
21.6 Hydrogen fuel cells and future options
23)
One advantage of using hydrogen fuel cells is ________.
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ntial for production of greenhouse gases
the ease of transporting and storage
the energy efficiency
that they are nonpolluting
the low impact on atmospheric ozone
D Diff: 2
21.6 Hydrogen fuel cells and future options
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21.6 Hydrogen fuel cells and future options
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25)
Mary Ann is looking at alternate energy sources for her home in the country, particularly wind and solar. She needs to consider ________.
impact of air pollution on the community
the amount of year-round sunshine where she lives, wind spee
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creates greenhouse gases but no acid deposition
can be produced where and when electricity is needed
converts the kinetic energy of earth processes to electrical energy
already has an infrastructure in place for using hydrogen as fuel
C
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the West
the Florida Keys
A Diff: 1
21.4 Geothermal: how harnessed, advantages, disadvantages
28)
Wind will not be a major energy resource in ________.
the SE
the NW
California
Texas
the NE
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21.3 Wind energy: how harnessed, advantages, disadvantages