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Which of the following is not an example of a bio-mass energy source?

  • wood
  • gobar-gas
  • nuclear energy

  • coal


C.

nuclear energy

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Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun’s energy?
  • geothermal energy
  • wind energy
  • nuclear energy
  • bio-mass.

Compare and contrast fossil fuels and the Sun as direct sources of energy.

What are the limitations of extracting energy from:
(a) the wind   
(b) waves
(c) tides?


Compare and contrast bio-mass and hydro electricity as sources of energy.


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