Class VIII

There are following zones of a flame
  1. 2
  2. 3
  3. 4
  4. No any zone
Like fuel the sun also provides heat and light. The process taking place in the sun is called
  1. Combustion
  2. Nuclear process
  3. Burning
  4. All of above
Ignition temperature is
  1. Lowest temperature at catch fire
  2. Higher temperature at catch fire
  3. Any temperature
  4. None of these
Coal burns with
  1. Flame
  2. Only Glow
  3. Both flame and glow
  4. None of these
Which substance give heat and light after combustion
  1. Flame
  2. Fuel
  3. combustion
  4. None of these
Time Elapsed

HR : MIN : SEC
Question Answered
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Score out of 100
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