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

Fact 2: Weather changes from season to season.

Given the two facts above, answer the question "What causes weather to change?" with the following options: 
- wind and erosion
 - Earth revolving around the sun
 - degrees Celsius
 - exposure to cold
 - Colder temperatures on Mars
 - Forecasting sunny weather
 - pressure differences.
 - Performing a rain dance


 

  Earth revolving around the sun       