Fact 1: Arainbow is formed by refraction of light by separating light into all different colors.

Fact 2: Refraction is the bending of light.

Given the two facts above, answer the question "what is a rainbow formed by?" with the following options: 
- Condensation
 - gravity
 - sunlight
 - energy of moving objects
 - pot of gold
 - rain or sun shine
 - bending of light
 - h2o


 

       bending of light  