Fact 1: Unequal heating of Earth 's surface by the Sun causes global wind patterns.

Fact 2: Low latitudes, for instance, receive more heat during the day than stations at high latitudes.

Given the two facts above, answer the question "Global wind patterns are driven by " with the following options: 
- the sun's energy
 - sunlight energy
 - windmills
 - Earth's magnetic core
 - structure and function
 - lunar tidal forces
 - unequal warming of the Earth's
 - Earth's atmosphere circulation


 

       unequal warming of the Earth's  