Nonrenewable Energy Resources Quiz
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Questions and Answers

What characterizes a nonrenewable energy resource?

  • An energy source derived from biological materials that are fossilized (correct)
  • An energy source with an infinite supply
  • An energy source that is continuously replenished
  • An energy source that does not produce emissions
  • Which of the following correctly represents the conversion of 600 Calories to joules?

  • 600 Calories x 2,500 J
  • 600 Calories x 1,000 J
  • 600 Calories x 4,184 J (correct)
  • 600 Calories x 746 J
  • What is the primary use of oil, coal, and natural gas worldwide?

  • Renewable energy sources
  • Electricity generation only
  • Transportation and heating (correct)
  • Biofuel production
  • What is the primary unit of power represented in watts?

    <p>Horsepower (B)</p> Signup and view all the answers

    Which of the following statements about energy and power is true?

    <p>Power is a measure of energy consumption over time. (C)</p> Signup and view all the answers

    How many watts are equivalent to 5 horsepower?

    <p>3,730 W (B)</p> Signup and view all the answers

    What describes the relationship between kilocalorie and joule?

    <p>1 kilocalorie is equal to 4,184 joules. (B)</p> Signup and view all the answers

    Which energy source is NOT considered a fossil fuel?

    <p>Solar energy (C)</p> Signup and view all the answers

    What is biomass primarily defined as?

    <p>Living or recently dead organisms and their byproducts (C)</p> Signup and view all the answers

    Which of the following is a characteristic of modern carbon?

    <p>It was recently in the atmosphere as carbon dioxide (D)</p> Signup and view all the answers

    What distinguishes charcoal from wood in terms of energy content?

    <p>Charcoal has twice as much energy per unit of weight (B)</p> Signup and view all the answers

    Which of the following statements is true regarding carbon neutrality?

    <p>Carbon neutral activities do not change CO2 concentrations (D)</p> Signup and view all the answers

    What is net removal in the context of biomass?

    <p>The removal of more biomass than is replaced by growth (D)</p> Signup and view all the answers

    What is a consequence of unsustainable wood use?

    <p>Depletion of forest resources (D)</p> Signup and view all the answers

    Which factor contributes to the evolution of the Xbox as a carbon neutral product?

    <p>Implementation of a low power sleep mode (D)</p> Signup and view all the answers

    What is the main difference between coal and charcoal?

    <p>Coal forms through ancient decay in swampy regions (B)</p> Signup and view all the answers

    What is the main process by which nuclear energy is used to generate electricity?

    <p>Nuclear fission (C)</p> Signup and view all the answers

    What is one of the primary disadvantages of using nuclear energy?

    <p>There is a potential for accidents (B)</p> Signup and view all the answers

    Which of the following is NOT an advantage of nuclear energy?

    <p>Ease of waste disposal (C)</p> Signup and view all the answers

    What is the role of control rods in a nuclear reactor?

    <p>To absorb excess neutrons and control the fission reaction (C)</p> Signup and view all the answers

    What is radioactive waste?

    <p>Nuclear fuel that no longer generates usable heat but emits radioactivity (B)</p> Signup and view all the answers

    What does the unit Becquerel (Bq) measure?

    <p>The rate of radioactive decay (D)</p> Signup and view all the answers

    How long are coal supplies estimated to last?

    <p>At least 200 years (C)</p> Signup and view all the answers

    What happens to the uranium-235 in a nuclear reactor during fission?

    <p>It splits into two or more parts, releasing energy (D)</p> Signup and view all the answers

    What is one negative consequence of creating a reservoir for hydroelectricity?

    <p>It can flood agricultural land. (C)</p> Signup and view all the answers

    How do hydroelectric systems potentially affect river ecosystems?

    <p>They interfere with organisms that depend on free-flowing rivers. (C)</p> Signup and view all the answers

    What is the primary benefit of active solar energy systems?

    <p>They generate energy without air or water pollution during operation. (B)</p> Signup and view all the answers

    Which city has the highest average solar energy availability per square meter per day?

    <p>Phoenix, AZ (A)</p> Signup and view all the answers

    What do photovoltaic systems do?

    <p>Capture energy from sunlight and convert it directly into electricity. (A)</p> Signup and view all the answers

    Which of the following locations has the least solar energy potential based on the provided data?

    <p>Cleveland, OH (A)</p> Signup and view all the answers

    What challenge does siltation pose in reservoirs?

    <p>It interferes with the operation of hydroelectric power generation. (C)</p> Signup and view all the answers

    What would be a suitable incentive to increase the number of photovoltaic cells in Arizona?

    <p>Tax incentives for solar panel sales. (B)</p> Signup and view all the answers

    What energy source is considered nondepletable and is derived from Earth's internal heat?

    <p>Geothermal Energy (C)</p> Signup and view all the answers

    How do ground source heat pumps primarily obtain heat?

    <p>From solar energy (B)</p> Signup and view all the answers

    Which of the following is a primary waste product of hydrogen fuel cells?

    <p>Water (A)</p> Signup and view all the answers

    Which countries are identified as the largest producers of geothermal energy?

    <p>United States, China, and Iceland (A)</p> Signup and view all the answers

    What percentage of energy can ground source heat pumps save compared to traditional heating and cooling systems?

    <p>30 to 70 percent (B)</p> Signup and view all the answers

    What is the primary function of a fuel cell?

    <p>To convert fuel into electrical current (B)</p> Signup and view all the answers

    What is electrolysis used for in relation to hydrogen fuel cells?

    <p>To split water into hydrogen and oxygen (A)</p> Signup and view all the answers

    What should be considered when planning for a renewable energy strategy?

    <p>Environmental and economic options (D)</p> Signup and view all the answers

    What is the equivalent of 1 curie in terms of decays per second?

    <p>37 billion decays per second (C)</p> Signup and view all the answers

    Which type of radioactive waste is associated with fuel rods?

    <p>High-level radioactive waste (D)</p> Signup and view all the answers

    What process powers the Sun and can be a future energy source?

    <p>Nuclear fusion (A)</p> Signup and view all the answers

    When performing addition or subtraction in scientific notation, what must be done first?

    <p>Convert numbers to the same power of 10 (B)</p> Signup and view all the answers

    In scientific notation, what happens when multiplying two numbers?

    <p>The digit terms are multiplied and the exponents are added (A)</p> Signup and view all the answers

    What must be done to the resulting answer in scientific notation after performing multiplication?

    <p>Standardize to leave one nonzero digit to the left of the decimal (C)</p> Signup and view all the answers

    Which method is the least expensive and environmentally sound option for maximizing energy resources?

    <p>Energy conservation (D)</p> Signup and view all the answers

    What is the process of nuclear fusion?

    <p>Combining lighter nuclei to form heavier nuclei (C)</p> Signup and view all the answers

    Flashcards

    Nonrenewable Energy

    An energy source with a finite supply, primarily fossil fuels and nuclear fuels.

    Fossil Fuel

    A fuel derived from biological material that became fossilized millions of years ago.

    Nuclear Fuel

    Fuel derived from radioactive materials that give off energy.

    Energy vs Power

    Energy is the ability to do work; power is the rate work is done.

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    Calorie

    A basic unit for energy; 1 kilocalorie (C) equals 1,000 calories.

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    Joule

    A unit of energy equal to the work done by a force of one newton over one meter.

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    Gigajoule (GJ)

    A unit equal to 1 billion joules.

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    Exajoule (EJ)

    A unit equal to 1 billion gigajoules.

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    Hubbert Curve

    A graph predicting the peak and decline in oil production over time.

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    Nuclear fission

    A nuclear reaction where a neutron splits an atomic nucleus, releasing energy and more neutrons.

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    Fuel rod

    A tube containing nuclear fuel in a reactor, essential for fission reactions.

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    Control rod

    A device that absorbs excess neutrons to regulate or stop nuclear fission.

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    Advantages of nuclear energy

    Benefits include no air pollution and reduced dependence on oil imports.

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    Disadvantages of nuclear energy

    Challenges include accident risks, waste disposal, and potential misuse of materials.

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    Radioactive waste

    Used nuclear fuel that no longer generates heat but emits radioactivity.

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    Becquerel (Bq)

    A unit measuring the decay rate of radioactive material; 1 Bq equals 1 decay per second.

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    Curie

    A unit measuring radiation, equal to 37 billion decays per second.

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    High-Level Radioactive Waste

    Waste from used fuel rods requiring careful disposal due to high radiation.

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    Low-Level Radioactive Waste

    Waste from protective clothing and tools used in maintenance, less hazardous than high-level.

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    Uranium Mine Tailings

    Residue left after uranium ore is mined and enriched, needing careful disposal.

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    Scientific Notation

    A method for writing very large/small numbers using a digit term and an exponential term.

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    Energy Conservation

    Using less energy by reducing waste, leading to cost savings and environmental benefits.

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    Energy Efficiency

    Using energy more effectively to reduce consumption while maintaining output.

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    Biomass

    Living or recently dead organisms and their byproducts used for energy.

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    Biofuel

    Liquid fuel created from processed or refined biomass.

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    Modern Carbon

    Carbon in biomass recently in the atmosphere, returned when burned.

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    Carbon Neutral

    An activity that does not change atmospheric CO2 concentrations.

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    Net Removal

    Removing more carbon than is replaced by growth, leading to unsustainability.

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    Charcoal vs Coal

    Charcoal is lighter, more energy-dense, and produces less smoke than coal.

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    Solid Biomass

    Physical forms of biomass, such as wood and manure, used as fuels.

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    Renewable Electricity

    Electricity produced from renewable sources like biomass.

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    Geothermal Energy

    Heat energy from Earth's internal radioactive decay.

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    Countries with Geothermal Resources

    The largest producers of geothermal energy are the U.S., China, and Iceland.

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    Ground Source Heat Pumps

    Technology that transfers heat between ground and buildings.

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    Energy Efficiency of Ground Pumps

    Ground source heat pumps use 30-70% less energy than traditional systems.

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    Fuel Cell

    An electrochemical device converting fuel into electric current.

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    Electrolysis

    Process using electric current to split water into hydrogen and oxygen.

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    Hydroelectricity Benefits

    Electricity generated from water, often less expensive and provides recreational opportunities.

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    Environmental Impact of Hydroelectricity

    Hydroelectricity can flood lands, affect ecosystems, and force relocations.

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    Hydrogen Fuel Cells

    Devices using hydrogen to produce electricity, with water as waste.

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    Siltation

    The accumulation of sediments, primarily silt, in reservoirs.

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    Renewable Energy Strategy Challenges

    Considerations when planning a sustainable energy future.

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    Active Solar Energy

    Energy captured from sunlight using advanced technologies like photovoltaic systems.

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    Photovoltaic Systems

    Devices that convert sunlight directly into electricity using solar cells.

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    Solar Energy Variability

    Different regions receive varying solar energy amounts throughout the year.

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    Benefits of Active Solar Energy

    Generates energy without CO2 emissions, especially efficient in sunny weather.

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    Kilowatt Hours (kWh)

    A measure of solar energy available per square meter per day, varies by location.

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    Study Notes

    Module 34: Patterns of Energy Use

    • Nonrenewable energy is used worldwide and in the United States

    • Fossil fuel: A fuel derived from biological material that became fossilized millions of years ago

    • Nonrenewable energy resource: An energy source with a finite supply, primarily fossil fuels and nuclear fuels

    • Nuclear fuel: Fuel derived from radioactive materials that give off energy

    • Worldwide annual energy consumption (2011) was dominated by oil, coal, and natural gas. Fossil fuels accounted for 82%, Oil-32%, Natural gas-21%, Coal/peat- 29%, and renewable energy 13%. Nuclear fuel accounted for 5%.

    Units of Energy and Power

    • Energy is the ability to do work or transfer heat. Units include joule (J), British Thermal Unit (BTU), calorie, and kilowatt-hour (kWh).
    • Power is the rate at which work is done. Units include watt (W) and horsepower (hp). 1 horsepower equals 745.7 watts.
    • A calorie is a basic unit of energy. 1 kilocalorie (kcal) = 1,000 calories = 4,184 joules

    Math Conversion

    • 600 Calories (kcal) is equal to 2,510,400 joules.
    • 5 horsepower equals 3,730 watts.

    Worldwide Patterns of Energy Use

    • A bar graph shows total annual energy consumption (in exajoules) for various countries, and a related bar graph shows per capita annual energy consumption (in gigajoules) for the mentioned countries.
    • The 10 featured countries list represent a spread of both high and low energy consumption figures.

    Global Energy Consumption Flowchart

    • The graphic identifies various types of energy use (past, present, future) with the main components: energy, human consumption, energy return on investment, externalities. Associated categories include: Food Animal Coal Gas Sustainable Wood Wind Oil

    Worldwide Patterns of Energy Use

    • Commercial energy source: An energy source that is bought and sold.
    • Subsistence energy source: An energy source gathered by individuals for their own immediate needs.

    Worldwide Patterns of Energy Use: USA

    • From 1850 to 2012, energy consumption increased significantly for every source (wood, coal, oil, renewables, hydroelectric power, and natural gas). Wood began declining in the 20th century, eventually overtaken by fossil fuels, which accounted for the majority of US energy sources, with natural gas having the most significant recent increase.

    Pie Chart of Total US Energy Consumption in 2012

    • Fossil fuels made up almost all energy consumption at 95 quadrillion BTUs. Oil accounted for 37%, Coal accounted for 18%, and Natural Gas accounted for 27%.
    • Renewables accounted for 8% of energy consumption, with nuclear fuel being 10%.

    Review the Law!

    • The Second Law of Thermodynamics dictates that when energy is transformed, its ability to do work diminishes because some energy is lost during each conversion.

    Quantifying Energy Efficiency

    • Energy efficiency refers to the effectiveness of the processes used to obtain fuel and convert it into work. Coal provides a prime example. Energy is lost throughout extraction, processing, transport, and disposal.

    Different energy forms are best suited for specific purposes.

    • The ideal energy source depends on the specific need. Energy return on energy invested (EROI) is a measure of effectiveness. EROI = (Energy obtained from fuel)/(Energy invested to obtain fuel). The higher the EROI value, the more efficient the energy.
    • Example: Data show different EROI values for coal extracted via surface mining versus subsurface mining, and for hydroelectric power compared to ethanol.

    Efficiency and Transportation

    • Nearly 30% of US energy is used for transportation. Efficiency is crucial in this sector.
    • Transportation relies primarily on vehicles powered by petroleum products (e.g., gasoline and diesel).
    • Data (graph) show a trend in overall US vehicle fuel efficiency, with some fluctuation over time.

    Electricity Accounts for 40% of Our Energy Use

    • Electricity is a common energy carrier.
    • Significant energy conversion losses occur during electricity generation, such that only 13% of the total energy consumed is available for final use.

    The Process of Electricity Generation

    • All thermal power plants convert fuel's potential energy into electricity.
    • Turbine: A device with blades (water, wind, steam, or exhaust) that turns a generator.
    • Electrical grid: A network of interconnected transmission lines connecting plants and consumers.

    The Process of Electricity Generation (Steps using Coal)

    • Coal's energy transforms water into steam.
    • Steam's kinetic energy rotates a turbine.
    • The turbine's rotation powers a generator to produce electricity.

    Efficiency of Electricity Generation

    • Combined cycle: A power plant that utilizes both exhaust gases and steam turbines.
    • Capacity: Maximum electrical output of a plant.
    • Capacity factor: The operating time of a power plant per year.
    • Cogeneration: The simultaneous generation of both heat and electricity using a single fuel source; this improves the efficiency of electricity generation to as high as 90 percent.

    Module 35: Fossil Fuel Resources

    • This module discusses the uses and consequences of coal, petroleum, natural gas, oil sands, and liquefied coal. It also forecasts the future use of fossil fuels.

    Coal

    • Coal is the most abundant and dirtiest fossil fuel. Coal is a solid fuel coming from millions of years of compressed plant matter.
    • Types of coal include lignite, sub-bituminous, bituminous, and anthracite.
    • Coal formation: Peat, Lignite, Bituminous, and Anthracite coal are formed over millions of years beneath layers of rock and sediment.

    Coal: Advantages

    • Energy-dense
    • Plentiful
    • Easy to exploit by surface mining
    • Relatively Inexpensive
    • Easy to handle and transport
    • Needs little refining

    Coal: Disadvantages

    • Contains impurities
    • Releases impurities into the air when burned
    • Combustion leads to increased air pollutants
    • Ash left behind can contribute to runoff

    Petroleum

    • Petroleum: A fossil fuel occurring in underground deposits as a liquid mixture of hydrocarbons, water and sulfur. Raw petroleum products taken from the ground are called crude oil.

    Petroleum: Advantages

    • Convenient to transport and use
    • Relatively energy dense
    • Cleaner burning than coal
    • Used in many applications

    Petroleum: Disadvantages

    • Releases carbon dioxide into atmosphere
    • Possibility of leaks during extraction/transport
    • Run-off into marine waterways
    • Releases sulfur, mercury, lead, and arsenic into the atmosphere when burned
    • Potential for environmental damage near drilling sites (ANWR debate)

    Natural Gas

    • Natural gas, a component of petroleum, exists as gaseous deposits separate from petroleum.
    • Composition: Mostly methane with some ethane, propane, and butane.

    Natural Gas: Advantages

    • Contains fewer impurities, emitting almost no sulfur dioxide or particulates.
    • Emits only 60 percent as much carbon dioxide as coal.

    Natural Gas: Disadvantages

    • Methane leakage into the atmosphere is a potent greenhouse gas.
    • Natural gas exploration can contaminate groundwater.

    Oil Sands and Liquefied Coal

    • Oil sands are slow-flowing, viscous deposits of bitumen mixed with sand, water and clay.
    • Bitumen is degraded petroleum that forms when petroleum surfaces and is shaped by bacteria.

    Fossil Fuels are Finite Resource

    • Energy Intensity: The energy use per unit of gross domestic product.
    • US per capita energy use has been declining recently, despite population growth.

    The Hubbert Curve

    • A graphical representation of the total petroleum production over time.
    • The graph's shape, whether showing an upper or lower estimate of total reserves, indicates that the date by which peak depletion will occur is not strongly affected—i.e., is not substantially different.

    The Future of Fossil Use

    • If current use continues without additional discovery, conventional oil may be exhausted within 50 years.
    • Coal supplies are expected to last at least two centuries.
    • New technologies and concerns about greenhouse gasses encourage exploration into alternative energy sources.

    Module 36: Nuclear Energy Resources

    • Nuclear energy describes the processes of using nuclear fuels to generate electricity. It highlights advantages and disadvantages.

    Nuclear Reactors Use Fission to Generate Electricity

    • Uranium-235: Used as a fuel source in nuclear electricity generation.
    • Fission: A nuclear reaction where a neutron strikes a relatively large atomic nucleus, and the nucleus splits into more parts, releasing additional neutrons and energy (heat).
    • Nuclear power plants use nuclear fission heat to boil water, producing steam that turns a turbine and drives a generator.

    Nuclear Fission

    • The process in which neutrons split larger atomic nuclei into smaller ones, releasing energy. This energy is then used to make steam, turn turbines.

    Nuclear Reactors Use Fission to Generate Electricity

    • Fuel rod: A cylindrical tube containing nuclear fuel in a nuclear reactor.
    • Control rod: A cylindrical device placed between fuel rods in a nuclear reactor to absorb excess neutrons, slowing or stopping the fission reaction.

    Nuclear Energy: Advantages and Disadvantages

    • Advantages: No air pollution, reduces reliance on imported oil.
    • Disadvantages: Possibility of accidents, problematic waste disposal, concern about misuse of nuclear materials.

    Radioactive Waste

    • Radioactive waste: Nuclear fuel that cannot produce enough heat for a power plant, but continues to emit radioactivity; has very long half-lives.
    • Becquerel (Bq): A unit that measures the rate of radioactive material decay. 1 Bq = 1 decay/second.
    • Curie: A unit of radiation measure. 1 curie = 37 billion decays/sec

    Module 39: Solar, Wind, Geothermal, and Hydrogen

    • This module discusses solar, wind, geothermal, and hydrogen energy.

    Solar Energy

    • Energy from the sun can be captured directly, useful for electricity generation, and many areas with high solar output could support substantial solar energy generation.

    Active Solar Energy

    • Technologies directly harnessing sunlight. Options include solar water heating systems, photovoltaic systems, and large-scale concentrating solar thermal systems.

    Wind Energy

    • Wind energy is the kinetic energy of moving air.
    • Various countries are establishing significant wind energy capacity.
    • Components of wind energy system: Turbine (blade, gearbox) and generator.

    Wind Energy: Advantages

    • Nondepletable/free (renewable) energy.
    • After manufacturing and installation, little input other than wind is required.
    • Wind-generated electricity does not pollute or release greenhouse gases.

    Wind Energy: Disadvantages

    • Most off-grid residential wind energy systems require batteries to store energy.
    • Wind turbines can be noisy and visually unappealing.
    • Wildlife, including birds and bats, have been shown to be killed by turbine blades.

    Geothermal

    • Geothermal energy taps the internal heat of the Earth.
    • Heat from the Earth can be used directly, or it can generate steam to drive turbines to produce electricity.
    • Geothermal resources include ground source heat pumps.

    Fuel Cells

    • Fuel cells convert fuels (e.g., hydrogen) into electrical current, and water is the only byproduct in most cases.
    • Electrolysis is the application of electrical current to water molecules to split them into hydrogen and oxygen molecules.

    Module 40: Planning Our Energy Future

    • This module forecasts the future of energy usage. It analyzes the economic and environmental implications of using or not using renewable energy to generate electricity.

    Our Energy Future

    • Efficiency, conservation, and developing sustainable energy strategies are critical for the future.
    • One strategy is adopting a smart grid—an electricity transmission network that continuously adjusts energy distribution in response to usage needs.

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    Description

    Test your knowledge on nonrenewable energy resources and related concepts. This quiz covers topics such as fossil fuels, energy conversion, and sustainability. Challenge yourself with questions on the primary uses of oil, coal, and natural gas, as well as the relationship between different energy units.

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