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

Fact 2: Wind belts in the Atlantic Ocean include the trade winds and the prevailing westerlies .

Given the two facts above, answer the question "What causes the westerlies?" with the following options: 
- flow of electrons
 - Ocean currents
 - Precipitation
 - to move people
 - Drought
 - scattered light
 - Uneven heating by the sun
 - exposure to cold


 

       Uneven heating by the sun  