Tobacco

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Across
  1. 3. speeds up the central nervous system
  2. 6. a sticky substance produced by burning tobacco
  3. 9. disease that permanently damages lung tissue
  4. 10. an addictive substance in tobacco products
Down
  1. 1. symptoms associated with stopping an addictive substance.
  2. 2. cancer causing agents
  3. 4. the voice box
  4. 5. air sacs where the exchange of oxygen and carbon dioxide takes place.
  5. 6. A plant used to produce cigarette and other products that contain nicotine.
  6. 7. a group of diseases that cause difficulty breathing
  7. 8. tobacco a smokeless tobacco product
  8. 11. the tiny hairs that help keep the respiratory clean