Because of the refraction of light. Hope this helps.
If I'm not mistaking, but I believe there are 7 colors on a Rainbow.
This would be a Diffney for: 7 colors of the rainbow
Could be seven colors of the rainbow.... 7CR? 7 Cross Roads? 7 Cute Rabbits? Good question... No, it's definitely 7 colors of the rainbow.
7 colors of the rainbow
7 colors in a rainbow
7 COLORS IN THE RAINBOW
7 colors in the rainbow
There are 7 colors in the rainbow and they are green,purple,blue,orange ,yellow,pink,red (not in order though) green is the best!
7 colors of the Rainbow 7 coins of the realm
Iris was named after the goddess of the rainbow. There are seven colors in the rainbow.
7
ROYGVIB 7 colors.