Fact 1: The Earth revolving around the Sun causes the seasons to change on its axis.

Fact 2: Winter is a horrible season.

Given the two facts above, answer the question "What does the Earth revolving around the Sun cause?" with the following options: 
- warmth
 - sunlight
 - friction
 - evolving
 - winter
 - heat
 - wind
 - climate


 

     winter    