Fact 1: Water causes refraction of light.

Fact 2: Refraction Refraction is the bending of light rays.

Given the two facts above, answer the question "What happens to light rays in water?" with the following options: 
- evaporation
 - they get wet
 - heat energy
 - a wave
 - they bend
 - they change frequency
 - break off
 - they vanish


 

     they bend    