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

Fact 2: Spring and Fall are transitional seasons.

Given the two facts above, answer the question "What does Earth 's tilt on its rotating axis cause?" with the following options: 
- Spring and Fall transition.
 - degrees Celsius
 - exposure to cold
 - global warming
 - a tree falling
 - Earth soil.
 - Rotating toys.
 - Tilting hats.


 

 Spring and Fall transition.        