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Questions and Answers
What is a major environmental concern related to obtaining petroleum?
What is a major environmental concern related to obtaining petroleum?
What is a characteristic of renewable resources?
What is a characteristic of renewable resources?
What is biomass?
What is biomass?
What is geothermal energy?
What is geothermal energy?
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What is gasohol?
What is gasohol?
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Which type of energy is produced when groundwater seeps into hot spots near the Earth's surface?
Which type of energy is produced when groundwater seeps into hot spots near the Earth's surface?
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What is a common use of biomass in non-industrialized countries?
What is a common use of biomass in non-industrialized countries?
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What is a byproduct of geysers?
What is a byproduct of geysers?
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What is the primary characteristic of non-renewable energy resources?
What is the primary characteristic of non-renewable energy resources?
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What is the process by which non-renewable energy resources are used to generate electricity?
What is the process by which non-renewable energy resources are used to generate electricity?
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What are the byproducts of burning non-renewable energy resources?
What are the byproducts of burning non-renewable energy resources?
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What is the most important energy resource according to the text?
What is the most important energy resource according to the text?
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How many main types of energy are classified?
How many main types of energy are classified?
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What is an example of non-renewable energy resources?
What is an example of non-renewable energy resources?
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What is the definition of a natural resource?
What is the definition of a natural resource?
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What is the relationship between energy and economic growth?
What is the relationship between energy and economic growth?
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What is the primary source of energy for hydroelectric power plants?
What is the primary source of energy for hydroelectric power plants?
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What is the name of the natural vent that is an example of geothermal energy?
What is the name of the natural vent that is an example of geothermal energy?
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What is the purpose of wind turbines in wind energy?
What is the purpose of wind turbines in wind energy?
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What is the advantage of solar energy in terms of pollution?
What is the advantage of solar energy in terms of pollution?
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What is the common advantage of using renewable resources like water, wind, and geothermal energy?
What is the common advantage of using renewable resources like water, wind, and geothermal energy?
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What is the disadvantage of using solar energy for large-scale energy production?
What is the disadvantage of using solar energy for large-scale energy production?
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What is the primary advantage of geothermal energy?
What is the primary advantage of geothermal energy?
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What is the advantage of biomass energy?
What is the advantage of biomass energy?
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Study Notes
Renewable Resources
- Natural resources that can be replenished over a short period of time
- Examples: solar energy, hydroelectric energy, wind energy, geothermal energy, biomass
Solar Energy
- Energy from the sun
- Can be harnessed directly or indirectly
- Examples: solar cells, solar panels, solar collectors, solar mirrors
Hydroelectric Energy
- Electricity produced by falling water
- Water is recycled through the water cycle
- Examples: dams
Wind Energy
- Energy in the wind
- Converted into electrical energy using wind turbines
- Rotates a generator to produce electricity
Geothermal Energy
- Harnesses heat from the Earth
- Groundwater forms geysers when it seeps into hotspots near the surface
- Examples: Old Faithful in Yellowstone National Park
Biomass
- Organic matter containing stored energy
- Examples: plants, wood, waste
- Can be converted into liquid fuel (e.g., gasohol)
Advantages of Renewable Resources
- Reduces fossil fuel usage
- Solar energy is an almost limitless source with no pollution
- Hydroelectric energy is renewable and produces no air pollution
- Wind energy is relatively inexpensive and non-polluting
- Geothermal energy is an almost limitless source with no pollution
- Biomass is renewable
Disadvantages of Alternative Resources
- Solar energy: expensive for large-scale production, only practical in sunny areas
- Hydroelectric energy: dams disrupt ecosystems
- Water pollution: oil spills can harm wildlife and the fishing industry
Problems with Fossil Fuels
- Air pollution causes Alzheimer's and dementia
- Fossil fuels contribute to climate change
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Description
Learn about natural vents like geysers and how they're used to generate electricity, as well as the benefits of solar energy and its applications.
