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Questions and Answers
What has been the main transition in energy consumption over the last two centuries?
What has been the main transition in energy consumption over the last two centuries?
- Transition from biomass to fossil fuels and nuclear energy (correct)
- Transition from natural gas to biomass and nuclear energy
- Transition from wind energy to fossil fuels and nuclear energy
- Transition from solar energy to fossil fuels and nuclear energy
Which source of energy now accounts for about 90 percent of all energy employed commercially?
Which source of energy now accounts for about 90 percent of all energy employed commercially?
- Wind energy
- Biomass
- Solar energy
- Fossil fuel (correct)
What is a characteristic of all fossil fuels mentioned in the text?
What is a characteristic of all fossil fuels mentioned in the text?
- They produce carbon dioxide, a greenhouse gas (correct)
- They are primarily used for heating purposes only
- They are completely clean and non-polluting
- They are renewable and unlimited
Why is it necessary to move toward the utilization of alternate renewable energy sources?
Why is it necessary to move toward the utilization of alternate renewable energy sources?
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What is the main environmental concern associated with the use of fossil fuels?
What is the main environmental concern associated with the use of fossil fuels?
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