HEALTH OF HUMAN RESPIRATORY SYSTEM

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Across
  1. 1. Transport that can conserve human respiratory system
  2. 7. Carbon monoxide + Haemoglobin
  3. 8. Damage of the alveoli in the lungs
  4. 9. Respiratory disease that caused by haze, dust and pollen
  5. 10. Colourless gas with pungent smell
Down
  1. 2. One harmful substance that can cause lung cancer
  2. 3. Gas release by the combustion of fuel
  3. 4. Disease that occur in respiratory system
  4. 5. Toxic substances found in cigarrete
  5. 6. Green lungs