smart technology in firefighting

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Across
  1. 3. Explosive fire from oxygen rush
  2. 5. Smothers flames effectively
  3. 6. Glowing spark that spreads fire
  4. 9. Ensures no fire rekindles
Down
  1. 1. Supplies water for hoses
  2. 2. Starts a fire’s burn
  3. 4. Signals a fire's presence
  4. 7. Clears people from danger
  5. 8. Sudden full-room fire burst