Fact 1: Fanning a fire increases the oxygen near the fire.

Fact 2: On the other hand, air is the element that fans the flames of fire.

Given the two facts above, answer the question "what is the element that increases the oxygen near the fire?" with the following options: 
- gas
 - earth
 - fire
 - CO 2
 - CO2
 - heat
 - water
 - air


 

        air 