Podcast
Questions and Answers
What type of energy does the earth’s core provide?
What type of energy does the earth’s core provide?
- Geothermal energy (correct)
- Wind energy
- Hydraulic energy
- Solar energy
Which process enables plants to utilize solar energy?
Which process enables plants to utilize solar energy?
- Fermentation
- Photosynthesis (correct)
- Evaporation
- Fossilization
What defines renewable energy sources?
What defines renewable energy sources?
- They require fossil fuels for production.
- They can be replenished within human lifespans. (correct)
- They can be extracted indefinitely.
- They only include solar and wind energy.
Which of the following is not considered a renewable energy source?
Which of the following is not considered a renewable energy source?
What is an example of a biofuel created from biomass?
What is an example of a biofuel created from biomass?
Which country generates more than 99% of its electricity from renewable sources?
Which country generates more than 99% of its electricity from renewable sources?
What are non-renewable energy sources characterized by?
What are non-renewable energy sources characterized by?
How does solar energy contribute to the hydrologic cycle?
How does solar energy contribute to the hydrologic cycle?
Which of the following statements is true regarding the distribution of energy?
Which of the following statements is true regarding the distribution of energy?
Flashcards
Renewable Energy
Renewable Energy
Energy sources that can be replenished within a human lifespan.
Non-Renewable Energy
Non-Renewable Energy
Energy sources that are finite and cannot be replenished within a human timescale.
Geothermal Energy
Geothermal Energy
Energy derived from the Earth's internal heat.
Hydro Energy
Hydro Energy
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Solar Energy
Solar Energy
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Wind Energy
Wind Energy
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Biomass Energy
Biomass Energy
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Nuclear Energy
Nuclear Energy
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Fossil Fuel Energy
Fossil Fuel Energy
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Study Notes
Energy Sources
- Energy for buildings, manufacturing, and transportation comes from various natural sources.
- Geothermal energy comes from the Earth's core.
- Tides are created by the gravitational pull of the moon and sun.
- The sun's radiation creates wind, the hydrologic cycle, and photosynthesis.
- Plants, algae, and cyanobacteria use solar energy to create biomass sources for biofuels (e.g., wood, biodiesel, bioethanol).
- Fossil fuels are formed from biomass over millions of years through geological processes.
Renewable vs. Non-Renewable Energy
- Energy sources are categorized as renewable or non-renewable.
- Renewable energy sources are replenished within human lifetimes (e.g., solar, wind, biomass).
- Non-renewable energy sources are limited and cannot be replenished quickly (e.g., nuclear, fossil fuels).
- Formation of fossil fuels takes millions of years.
Environmental and Health Costs
- All energy sources have associated environmental and health costs.
- Energy distribution is unequal globally.
Energy Generation Examples
- The United States generates less than 10% of its energy from renewable sources, while Costa Rica generates over 99% from renewable sources.
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