The colors of the rainbow are caused by the refraction and internal reflection of light rays that enter the raindrop, each color being bent through a slightly different angle.
(The colors of the rainbow; are caused; by the refraction and internal reflection of light rays) (light rays; enter; the raindrop) (each color; being bent; )
The colors of the rainbow light rays each color
are caused enter being bent
by the refraction and internal reflection of light rays
the raindrop