Fact 1: Alight bulb converts electrical energy into light energy when it is turned on.

Fact 2: Too much ultraviolet energy may cause skin cancer.

Given the two facts above, answer the question "Exposure to which of the following can cause skin cancer?" with the following options: 
- Gene Rayburn
 - some types of light bulbs
 - bad thoughts
 - Deoxyribonucleicacid
 - water
 - direct damage to the lungs
 - Sulfur dioxide
 - chlorofluorocarbons


 

  some types of light bulbs       