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sources of energy — Science STD 10 — Question

Gujarat BoardEnglish MediumSTD 10Sciencesources of energy2 Marks
Question
What is a good fuel?
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Answer

  • A good fuel is the one,
  • Which burns completely without producing smoke or ash.
  • Which produces large amount of heat while burning a small quantity of it.
  • Which is easily available and economical.

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