FIRE: FRIEND AND FOE

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Across
  1. 1. Synonym of enemy
  2. 3. Suffocate from lack of air
  3. 6. Produce
  4. 7. Put out
Down
  1. 1. Temperature at which a fuel begins to burn
  2. 2. Material that is burnt
  3. 3. Burn slowly without fire
  4. 4. Confuse or wonder
  5. 5. Fire is the result of __________reaction