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

Fact 2: UV radiation increases the risk of getting skin cancer.

Given the two facts above, answer the question "What increases the risk of getting skin cancer?" with the following options: 
- Ozone depletion.
 - cigarettes
 - smoking tobacco
 - adding heat
 - electromagnetic energy
 - smoking pipes
 - rays or beams
 - wavelengths and photons


 

 Ozone depletion.        