Generating electricity

Electricity is a very convenient form of energy that can be generated usingdifferent energy resources. Some of these resources are renewable and some are non-renewable. Each resource has advantages and disadvantages.

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Fossil fuels

  • The fossil fuels are coal, oil and natural gas. They are fuels because they release heat energy when they are burned. They are fossil fuels because they were formed from the remains of living organisms millions of years ago.
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Disadvantages of using fossil fuels

  • Fossil fuels are non-renewable energy resources.
  • Their supply is limited
  •  Fossil fuels release carbon dioxide when they burn, which adds to the greenhouse effect and increases global warming.
  • Coal and oil release sulfur dioxide gas when they burn, which causes breathing problems for living creatures and contributes to acid rain.
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Nuclear fuels


  • Unlike fossil fuels, nuclear fuels do not produce carbon dioxide or sulfur dioxide.


  • nuclear fuels are non-renewable energy resources.
  • In addition, nuclear waste remains radioactive and is hazardous to health for thousands of years.
  • It must be stored safely.
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