Across
- 3. major part of breathing process
- 5. this system is for breathing
- 9. addictive drug in tobacco
- 10. inhaling with battery operated device
- 11. need for drug or substance
- 12. symptoms occur when stop using
Down
- 1. breathing out
- 2. different types can happen over time
- 4. using tobacco over time can be _______
- 6. plant dried for cigarettes
- 7. breathing in
- 8. stop using a substance