Fact 1: Earth 's tilt on its rotating axis causes seasons to change.

Fact 2: Autumn brings the changing of the seasons.

Given the two facts above, answer the question "Earth's tilt on its rotating axis causes what?" with the following options: 
- rainfall
 - wind
 - rest
 - spring
 - autumn
 - pollution
 - taxes
 - death


 

     autumn    