Sunlight and rain can cause a rainbow, and rainbows Rainbows are important symbols to the Navajo people. Given these facts, what can cause an important symbol to the Navajo people among the following options:
- density
 - energy of moving objects
 - sunlight and rain
 - volume
 - colors of the spectrum
 - mass
 - rain or sun shine
 - rays or beams


 

   sunlight and rain      