Question 1

What is a fuel-wood crisis?

Accepted Answer

A fuel-wood crisis exists when people are forced to meet their fuel needs by cutting down trees faster than they can grow to replace the trees that are removed.This affects approximately 2.7 million people in 77 countries.

Question 2

The United States government heavily subsidizes ethanol production from corn because ____.

Accepted Answer

A)  farmers demand it 
B)  of a very low net energy yield 
C)  of lower carbon dioxide emissions 
D)  of higher gas mileage 
E)  there is too much corn in the U.S. 
A)  farmers demand it 
B)  of a very low net energy yield 
C)  of lower carbon dioxide emissions 
D)  of higher gas mileage 
E)  there is too much corn in the U.S. B

Question 3

Several underwater turbines have been installed to tap the tidal flow of the East River in New York City.

Accepted Answer

A) True 
 B)False  True

Question 4

Cogeneration in Denmark produces a majority of its electricity.

Accepted Answer

A) True 
 B)False

Question 5

What are the three challenges in turning the vision of hydrogen as a fuel into a reality?

Accepted Answer

First,there is hardly any hydrogen gas i

Question 6

What is the least likely effect of reducing unnecessary energy waste?

Accepted Answer

A)  prolonging fossil fuels 
B)  increasing energy costs 
C)  creating local jobs 
D)  reducing pollution and environmental degradation 
E)  providing a very high net energy yield 
A)  prolonging fossil fuels 
B)  increasing energy costs 
C)  creating local jobs 
D)  reducing pollution and environmental degradation 
E)  providing a very high net energy yield

Question 7

Large numbers of birds killed each year by various hazards.How many are killed by wind turbines?

Accepted Answer

A)  440 thousand 
B)  67 million 
C)  80 million 
D)  100 million 
E)  100+ million 
A)  440 thousand 
B)  67 million 
C)  80 million 
D)  100 million 
E)  100+ million

Question 8

A(n)____________________ is a device that uses hydrogen gas as a fuel to produce electricity.

Accepted Answer

The answer of A(n)____________________ is a device that uses hydrogen...

Question 9

What is not a viable method of producing hydrogen gas?

Accepted Answer

A)  passing electricity through water 
B)  stripping it from methane 
C)  initiating a chemical reaction involving coal,oxygen,and steam 
D)  removing it from the atmosphere 
E)  taking off the gasoline molecule 
A)  passing electricity through water 
B)  stripping it from methane 
C)  initiating a chemical reaction involving coal,oxygen,and steam 
D)  removing it from the atmosphere 
E)  taking off the gasoline molecule

Question 10

What percentage of Brazil's motor vehicles currently run on ethanol or ethanol-gasoline mixtures?

Accepted Answer

A)  15% 
B)  25% 
C)  35% 
D)  45% 
E)  55% 
A)  15% 
B)  25% 
C)  35% 
D)  45% 
E)  55%

Question 11

Many energy analysts argue that one of the most important steps that governments can take to level the economic playing field for energy resources is to ____.

Accepted Answer

A)  phase out subsidies and tax breaks for fossil fuels and nuclear power 
B)  provide no subsidies for any energy resources 
C)  pass regulations making it more difficult to use fossil fuels 
D)  keep prices low on fossil fuels until they run out 
E)  require the use of solar powered water heaters 
A)  phase out subsidies and tax breaks for fossil fuels and nuclear power 
B)  provide no subsidies for any energy resources 
C)  pass regulations making it more difficult to use fossil fuels 
D)  keep prices low on fossil fuels until they run out 
E)  require the use of solar powered water heaters

Question 12

Wind power is the second fastest growing source of energy worldwide.

Accepted Answer

A) True 
 B)False

Question 13

Experts suggest in the next few decades,we will probably shift from our current model of producing electricity to which of the following?

Accepted Answer

A)  de-centralized micropower system 
B)  a highly centralized macropower system 
C)  a highly de-centralized macropower system 
D)  some new,unforeseen system 
E)  a central,megasystem 
A)  de-centralized micropower system 
B)  a highly centralized macropower system 
C)  a highly de-centralized macropower system 
D)  some new,unforeseen system 
E)  a central,megasystem

Question 14

Because hydrogen must be produced using other forms of energy,it has a(n)____________________ net energy yield.

Accepted Answer

The answer of Because hydrogen must be produced using other...

Question 15

Brazil makes its ethanol from ____________________,a residue produced when sugarcane is crushed.

Accepted Answer

The answer of Brazil makes its ethanol from ____________________,a residue...

Question 16

Huge ____ use only about 10% of the electrical energy they pull off the grid.The other 90% ends up as low-quality heat that flows into the environment.

Accepted Answer

The answer of Huge ____ use only about 10% of...

Question 17

Experts have concluded that the best way to make the transition to using mostly renewable energy resources during this century is a combination of improved energy efficiency and the carefully regulated use of ____.

Accepted Answer

A)  coal 
B)  fuel oil 
C)  nuclear power 
D)  natural gas 
E)  petroleum 
A)  coal 
B)  fuel oil 
C)  nuclear power 
D)  natural gas 
E)  petroleum

Question 18

What percentage of the commercial energy used in the United States is wasted?

Accepted Answer

A)  54% 
B)  64% 
C)  74% 
D)  84% 
E)  94% 
A)  54% 
B)  64% 
C)  74% 
D)  84% 
E)  94%

Question 19

What is not considered to be a hidden cost of a gallon of gasoline?

Accepted Answer

A)  government subsidies for oil companies 
B)  tax breaks for car manufacturers and road builders 
C)  research and development for hybrid cars 
D)  cost of pollution control and cleanup 
E)  costs of military protection of oil supplies in the Middle East 
A)  government subsidies for oil companies 
B)  tax breaks for car manufacturers and road builders 
C)  research and development for hybrid cars 
D)  cost of pollution control and cleanup 
E)  costs of military protection of oil supplies in the Middle East

Question 20

What is the least feasible method for industries to cut energy waste?

Accepted Answer

A)  using combined heat and power systems 
B)  replacing energy-wasting electric motors 
C)  switching from coal-burning power plants to nuclear power plants 
D)  recycling materials 
E)  switching from incandescent lighting to fluorescent lighting and LED lighting 
A)  using combined heat and power systems 
B)  replacing energy-wasting electric motors 
C)  switching from coal-burning power plants to nuclear power plants 
D)  recycling materials 
E)  switching from incandescent lighting to fluorescent lighting and LED lighting

Exam 16: Energy Efficiency and Renewable Energy

What is a fuel-wood crisis?

The United States government heavily subsidizes ethanol production from corn because ____.

Several underwater turbines have been installed to tap the tidal flow of the East River in New York City.

Cogeneration in Denmark produces a majority of its electricity.

What are the three challenges in turning the vision of hydrogen as a fuel into a reality?

What is the least likely effect of reducing unnecessary energy waste?

Large numbers of birds killed each year by various hazards.How many are killed by wind turbines?

A(n)____________________ is a device that uses hydrogen gas as a fuel to produce electricity.

What is not a viable method of producing hydrogen gas?

What percentage of Brazil's motor vehicles currently run on ethanol or ethanol-gasoline mixtures?

Many energy analysts argue that one of the most important steps that governments can take to level the economic playing field for energy resources is to ____.

Wind power is the second fastest growing source of energy worldwide.

Experts suggest in the next few decades,we will probably shift from our current model of producing electricity to which of the following?

Because hydrogen must be produced using other forms of energy,it has a(n)____________________ net energy yield.

Brazil makes its ethanol from ____________________,a residue produced when sugarcane is crushed.

Huge ____ use only about 10% of the electrical energy they pull off the grid.The other 90% ends up as low-quality heat that flows into the environment.

Experts have concluded that the best way to make the transition to using mostly renewable energy resources during this century is a combination of improved energy efficiency and the carefully regulated use of ____.

What percentage of the commercial energy used in the United States is wasted?

What is not considered to be a hidden cost of a gallon of gasoline?

What is the least feasible method for industries to cut energy waste?

Environmental Problems, their Causes, and Sustainability

Science, matter, energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Food, soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, environment, and Sustainability

Politics, environment, and Sustainability

Environmental Worldviews, ethics, and Sustainability

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