If breathing pollutants can harm the respiratory system, then what does breathing pollutants do?

Answer choices:
- Harms the respiratory system
 - destroying life
 - scraping oneself on a contaminated object
 - direct damage to the lungs
 - cause people to become sick.
 - Heals the respiratory system
 - Harms the stomach
 - Improves vision

 

 Harms the respiratory system         