system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why Colors Fade in sunlight?  What actually happens to the color?  Does it dissipate into the air somehow?
gpt
The photons of ultra violet light from the sun interact with some chemicals that are used to create dyes and pigments (i.e. colors) in a way that causes the chemicals to change and stop having the color.  The energy of the photon causes certain bonds between atoms in the dye molecule to break.