Question 1

Geothermal heat pumps may be used to exploit the temperature difference between the earth's surface and underground in the earth's mantle.

Accepted Answer

A) True 
 B)False

Question 2

Hydrogen fuel cells

Accepted Answer

A)  rely on direct energy from the sun.
B)  use geothermal energy to produce electricity.
C)  combine hydrogen and oxygen gas to produce electricity and water vapor.
D)  require complex carbohydrates as starting materials.
E)  break apart water molecules and use the hydrogen as energy.

Question 3

Geothermal energy is stored in the form of

Accepted Answer

A)  trees and shrubs.
B)  deserts.
C)  rainwater.
D)  soil and rocks.
E)  ice and glaciers.

Question 4

One advantage of large-scale hydropower is that it

Accepted Answer

A)  does not require government subsidies.
B)  has a high net energy yield.
C)  produces low methane emissions.
D)  makes it easier for fish to migrate upstream.
E)  does not alter aquatic ecosystems.

Question 5

Where in the world is biomass used as the primary energy source?

Accepted Answer

A)  China
B)  More-developed countries
C)  Africa
D)  The United States
E)  The poorest countries E

Question 6

Overall, nonrenewable resources have a lower net energy than renewable resources.

Accepted Answer

A) True 
 B)False

Question 7

Photovoltaic cells

Accepted Answer

A)  produce more carbon dioxide than burning fossil fuels.
B)  operate only on clear days.
C)  have high air and water pollution during operation.
D)  have a fairly high net energy yield.
E)  are cheap compared to fossil fuels.

Question 8

Passive solar heating systems involve

Accepted Answer

A)  green roofs.
B)  pumping a heat-absorbing fluid through collectors on the roof.
C)  wind turbines with solar panels attached.
D)  foil sheets under the floor.
E)  adobe walls and windows that face the sun and store the collected solar energy.

Question 9

Electric-gasoline powered vehicles are called ____________________.

Accepted Answer

The answer of Electric-gasoline powered vehicles are called ____________________....

Question 10

Governments do not have the power to control the shift from nonrenewable to renewable energy sources.

Accepted Answer

A) True 
 B)False

Question 11

Hydropower

Accepted Answer

A)  provides about 90% of the electricity in Europe.
B)  is most important in rivers and streams.
C)  uses the potential energy of large standing water bodies to produce electricity.
D)  can emit methane from the decomposition of submerged vegetation in reservoirs.
E)  is expected to grow in large-scale plants in the future.

Question 12

The most effective water heater is a(n)

Accepted Answer

A)  gas water heater.
B)  electric water tank.
C)  roof-mounted solar hot water heater.
D)  oil water heater.
E)  propane water heater.

Question 13

If energy prices were kept artificially high,

Accepted Answer

A)  energy efficiency would be discouraged.
B)  dependence on imported energy sources would increase.
C)  the use of non-renewable energy resources in the future would decline.
D)  nuclear power would be the most reasonable choice.
E)  there would be no need for government subsidies.

Question 14

Energy conservation is best achieved through ____________________.

Accepted Answer

energy eff...

Question 15

Green roofs could be used in office buildings to conserve heat in winter and cooling in the summer.

Accepted Answer

A) True 
 B)False  True

Question 16

Solar energy is becoming more popular recently due to

Accepted Answer

A)  the decline of nuclear power after Fukushima.
B)  the decreased abundance of natural gas in the United States.
C)  new technology and the lower cost due to subsidies and tax breaks.
D)  conflict in the Middle East over oil supplies.
E)  the rising temperature of the atmosphere.

Question 17

What country is the largest producer of liquid biofuels?

Accepted Answer

A)  Brazil
B)  Mexico
C)  China
D)  Uruguay
E)  Costa Rica

Question 18

Solar thermal systems used to generate electricity are the best option for energy generation in desert areas as there are no environmental impacts.

Accepted Answer

A) True 
 B)False

Question 19

What are some of the advantages and disadvantages of using biomass as fuel?

Accepted Answer

Advantages: widely available; can be mad...

Question 20

Photovoltaic solar cells work on cloudy days.

Accepted Answer

A) True 
 B)False  True

Exam 10: Energy Efficiency and Renewable Energy

Geothermal heat pumps may be used to exploit the temperature difference between the earth's surface and underground in the earth's mantle.

Correct AnswerverifiedShow Answer

Hydrogen fuel cells

Correct AnswerverifiedShow Answer

Geothermal energy is stored in the form of

Correct AnswerverifiedShow Answer

One advantage of large-scale hydropower is that it

Correct AnswerverifiedShow Answer

Where in the world is biomass used as the primary energy source?

Correct AnswerverifiedE

Overall, nonrenewable resources have a lower net energy than renewable resources.

Correct AnswerverifiedShow Answer

Photovoltaic cells

Correct AnswerverifiedShow Answer

Passive solar heating systems involve

Correct AnswerverifiedShow Answer

Electric-gasoline powered vehicles are called ____________________.

Correct AnswerverifiedShow Answer

Governments do not have the power to control the shift from nonrenewable to renewable energy sources.

Correct AnswerverifiedShow Answer

Hydropower

Correct AnswerverifiedShow Answer

The most effective water heater is a(n)

Correct AnswerverifiedShow Answer

If energy prices were kept artificially high,

Correct AnswerverifiedShow Answer

Energy conservation is best achieved through ____________________.

Correct Answerverifiedenergy eff...View AnswerShow Answer

Green roofs could be used in office buildings to conserve heat in winter and cooling in the summer.

Correct AnswerverifiedTrue

Solar energy is becoming more popular recently due to

Correct AnswerverifiedShow Answer

What country is the largest producer of liquid biofuels?

Correct AnswerverifiedShow Answer

Solar thermal systems used to generate electricity are the best option for energy generation in desert areas as there are no environmental impacts.

Correct AnswerverifiedShow Answer

What are some of the advantages and disadvantages of using biomass as fuel?

Correct AnswerverifiedAdvantages: widely available; can be mad...View AnswerShow Answer

Photovoltaic solar cells work on cloudy days.

Correct AnswerverifiedTrue

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