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The primary energy resources are always :

  • A.Conventional only
  • B.Non-conventional only
  • C.Conventional as well as non-conventional
  • D.None of the above

Answer: C

Primary energy resources are conventional as well as non-conventional.

Primary energy is energy as it is found in nature, before any conversion: coal, crude oil and natural gas, which are conventional, and sunlight, wind, flowing water, biomass and geothermal heat, many of which are counted as non-conventional. Electricity and petrol are secondary forms made from them.

Since both groups are found in nature, saying primary resources are only conventional or only non-conventional is wrong, and 'None of the above' is ruled out.

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