Fossil Fuels

What are fossil fuels?

• coal, gasoline, natural gas

• coal, petrol, natural gas

• coal, petroleum, natural gas

• coal, deisel, natural gas

What are the conditions needed for coal to form?

• plants die, are buried with no oxygen, heat, pressure, hundreds of years

• marine organisms die, are buried with no oxygen, heat, pressure, hundreds of years

• plants die, are buried with oxygen, heat, pressure, millions of years

• plants die, are buried with no oxygen, heat, pressure, millions of years

How are oil and gas formed?

• trees die and are buried, no oxygen, heat, pressure, millions of years

• plants and animals in the sea die and are buried, no oxygen, heat, pressure,bacteria, millions of years

• trees die and are buried, oxygen, heat, pressure, millions of years

• plants and animals in the sea die and are buried, oxygen, heat, pressure,bacteria, millions of years

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What are advantages of fossil fuels?

• cheap, light, burn quickly

• cheap, easy to store and transport, no pollution

• will not run out

• cheap, easy to store and transport, give a lot of energy from a small amount of fuel

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What are disadvantages of fossil fuels?

• cheap, will not run out

• cheap, easy to store and transport,

• cause pollution, non renewable

• noisy

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How is electricity produced in a fossil fuel burning power station?

• fuel is burned, heats water to form steam, steam turns a turbine, generator produces electricity

• fuel is burned, heats water to form steam, generator turns a turbine to produce electricity

• fuel is burned, steam is cooled, turns a turbine, generator turns a turbine to produce electricity

• fuel is burned, heats water to form steam, turbine produces electricity

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How is electricity produced in a hydroelectric power station (HEP) ?

• steam is produced, turns a turbine, generator produces electricity

• falling water turns a turbine, generator produces electricity

• waves and tides turn a turbine, generator produces electricity

• hydro power (wind, waves and tides) operate a generator that produces electricity

What is nuclear fuel?

• atomic bombs

• uranium and plutonium decompose to give off energy

• splitting the atoms of uranium and plutonium (fission) to give off energy

• uranium and plutonium combine (fusion) to give off energy

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What are the disadvantages of nuclear fuels?

• High initial cost (expensive to build)

• Difficult to dispose of radioactive waste safely

• Danger of large scale accidents (eg. Chernobyl, Fukushima) occuring

• All of the above

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