Fire - Friend and Foe

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Across
  1. 1. Surprised
  2. 4. Temperature at which fire begins to burn
  3. 6. Ingredient required to start a fire
  4. 7. To suffocate or to cut off oxygen
  5. 10. A group of firemen
Down
  1. 2. To put out fire
  2. 3. Wide area
  3. 5. Burn slowly with smoke but not flame
  4. 8. To make sure
  5. 9. Collective noun for a group of people