Fact 1: Air pollution harms the respiratory and circulatory systems.

Fact 2: Breathing air pollutants can increase the chances of experiencing health problems.

Given the two facts above, answer the question "What does breathing pollutants do?" with the following options: 
- 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        