Question 1

By the end of this century,solar cells will be the world's number one source of electricity according to the chief engineer for General Electric.

Accepted Answer

A) True 
 B)False

Question 2

Because of their abundance and artificially low prices,fossil fuels will continue to be used in large quantities in the future.

Accepted Answer

A) True 
 B)False

Question 3

Orienting a building to face the sun in order that solar energy is used to help heat the building,would save what percentage of its heating costs?

Accepted Answer

A)  20% 
B)  30% 
C)  40% 
D)  50% 
E)  60% 
A)  20% 
B)  30% 
C)  40% 
D)  50% 
E)  60%

Question 4

Which country gets 95% of its energy from renewable sources?

Accepted Answer

A)  Denmark 
B)  Brazil 
C)  Iceland 
D)  Costa Rica 
E)  China 
A)  Denmark 
B)  Brazil 
C)  Iceland 
D)  Costa Rica 
E)  China

Question 5

Discuss why the use of large scale hydropower plants will fall slowly over the next several decades.

Accepted Answer

The reservoirs will fill with silt and b

Question 6

Growing biomass in plantation settings has some disadvantages.What is not one of these?

Accepted Answer

A)  Soil nutrients are depleted. 
B)  Clearing forests for plantations degrades biodiversity. 
C)  Non-native species planted in plantations can spread to nearby ecosystems. 
D)  Plantation grown biomass is very expensive to burn. 
E)  Clearing forests for plantations reduces carbon dioxide capture . 
A)  Soil nutrients are depleted. 
B)  Clearing forests for plantations degrades biodiversity. 
C)  Non-native species planted in plantations can spread to nearby ecosystems. 
D)  Plantation grown biomass is very expensive to burn. 
E)  Clearing forests for plantations reduces carbon dioxide capture .

Question 7

What is the world's leading renewable energy source used to produce electricity?

Accepted Answer

A)  hydrogen 
B)  biomass 
C)  ethanol 
D)  hydropower 
E)  coal 
A)  hydrogen 
B)  biomass 
C)  ethanol 
D)  hydropower 
E)  coal

Question 8

A 2009 study estimates that the United States has enough wind power potential to produce _____ times its current electricity needs.

Accepted Answer

A)  16-22 
B)  26-32 
C)  6-12 
D)  36-42 
E)  46-52 
A)  16-22 
B)  26-32 
C)  6-12 
D)  36-42 
E)  46-52

Question 9

Coal fired power plants waste about two-thirds of the energy released by burning the coal.

Accepted Answer

A) True 
 B)False

Question 10

Why are many Midwest farmers and ranchers welcoming wind farms and becoming developers?

Accepted Answer

The farmer generally receives $3,000 to

Question 11

What is the world's fastest growing way to produce electricity?

Accepted Answer

A)  hydroelectric energy 
B)  solar cells 
C)  geothermal energy 
D)  nuclear energy 
E)  hydrogen cells 
A)  hydroelectric energy 
B)  solar cells 
C)  geothermal energy 
D)  nuclear energy 
E)  hydrogen cells

Question 12

Which of the following is not true of heating a house with passive or active solar energy?

Accepted Answer

A)  moderate to high net energy 
B)  very low carbon dioxide emissions 
C)  very low land disturbance 
D)  low installation and maintenance costs for active systems 
E)  moderate cost for passive systems 
A)  moderate to high net energy 
B)  very low carbon dioxide emissions 
C)  very low land disturbance 
D)  low installation and maintenance costs for active systems 
E)  moderate cost for passive systems

Question 13

Molten salt systems allow solar thermal power plants to produce electricity around the clock.

Accepted Answer

A) True 
 B)False

Question 14

A(n)____________________ uses the temperature differential between the surface and 3-6 meters underground to heat and cool a house.

Accepted Answer

geothermal

Question 15

Why does cloudy Germany have more solar water heaters and solar cell panels than sunny France and Spain?

Accepted Answer

A)  Germany won a contest between the three countries to see who could install the most. 
B)  German citizens voted for it. 
C)  Germany artificially increased the cost of fossil fuels 
D)  Germany passed a law requiring the use of solar power. 
E)  Germany made the public aware of the benefits of these technologies through education. 
A)  Germany won a contest between the three countries to see who could install the most. 
B)  German citizens voted for it. 
C)  Germany artificially increased the cost of fossil fuels 
D)  Germany passed a law requiring the use of solar power. 
E)  Germany made the public aware of the benefits of these technologies through education.

Question 16

Anela Belcher,materials scientist at MIT,is working on a novel new type of battery based on which of the following?

Accepted Answer

A)  water 
B)  salt 
C)  seaweed 
D)  alcohol 
E)  viruses 
A)  water 
B)  salt 
C)  seaweed 
D)  alcohol 
E)  viruses

Question 17

The best way to reduce our unnecessary waste of energy is to improve _____.

Accepted Answer

A)  solar cells 
B)  hydroelectric power 
C)  coal mining techniques 
D)  energy efficiency 
E)  hydrogen cells 
A)  solar cells 
B)  hydroelectric power 
C)  coal mining techniques 
D)  energy efficiency 
E)  hydrogen cells

Question 18

What is the world's single largest human-caused source of methane?

Accepted Answer

A)  cattle belching 
B)  flatulence 
C)  pig manure 
D)  melting tundra 
E)  world's largest dams 
A)  cattle belching 
B)  flatulence 
C)  pig manure 
D)  melting tundra 
E)  world's largest dams

Question 19

If all costs are included for all sources,wind power is the cheapest way to produce electricity.

Accepted Answer

A) True 
 B)False

Question 20

What are the three general conclusions scientists and energy experts have determined regarding possible energy futures?

Accepted Answer

First,during this century,there will lik

Exam 16: Energy Efficiency and Renewable Energy

By the end of this century,solar cells will be the world's number one source of electricity according to the chief engineer for General Electric.

Because of their abundance and artificially low prices,fossil fuels will continue to be used in large quantities in the future.

Orienting a building to face the sun in order that solar energy is used to help heat the building,would save what percentage of its heating costs?

Which country gets 95% of its energy from renewable sources?

Discuss why the use of large scale hydropower plants will fall slowly over the next several decades.

Growing biomass in plantation settings has some disadvantages.What is not one of these?

What is the world's leading renewable energy source used to produce electricity?

A 2009 study estimates that the United States has enough wind power potential to produce _____ times its current electricity needs.

Coal fired power plants waste about two-thirds of the energy released by burning the coal.

Why are many Midwest farmers and ranchers welcoming wind farms and becoming developers?

What is the world's fastest growing way to produce electricity?

Which of the following is not true of heating a house with passive or active solar energy?

Molten salt systems allow solar thermal power plants to produce electricity around the clock.

A(n)____________________ uses the temperature differential between the surface and 3-6 meters underground to heat and cool a house.

Why does cloudy Germany have more solar water heaters and solar cell panels than sunny France and Spain?

Anela Belcher,materials scientist at MIT,is working on a novel new type of battery based on which of the following?

The best way to reduce our unnecessary waste of energy is to improve _____.

What is the world's single largest human-caused source of methane?

If all costs are included for all sources,wind power is the cheapest way to produce electricity.

What are the three general conclusions scientists and energy experts have determined regarding possible energy futures?

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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