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Question

A burning substance will ___________, if the temperature falls below its ignition temperature.
  1. extinguish
  2. burn brightly
  3. dimly burn
  4. burn with emission of smoke

A
burn brightly
B
extinguish
C
dimly burn
D
burn with emission of smoke
Solution
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The ignition temperature of a substance is the lowest temperature at which a substance catches fire and burns in the air.
Below this temperature, a substance will stop burning and get extinguished.

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