Fact 1: Ozone depletion results in higher levels of UV radiation reaching Earth.

Fact 2: Ozone is a form of oxygen that absorbs damaging UV radiation.

Given the two facts above, answer the question "what is ozone made of?" with the following options: 
- oxygen
 - gas
 - dangerous
 - Energy
 - nitrogen
 - emissions
 - radiation
 - hydrogen


 

 oxygen        