You are presented with the question "Global wind patterns are caused by" and the following answer choices: 
- plate shifts
 - fissures of hot, acidic water
 - earth rotating on axis
 - Differences in temperature
 - gravity
 - electromagnetic energy
 - scattered light
 - Greenhouse gases

Now knowing that unequal heating of Earth 's surface by the Sun causes global wind patterns and unequal heating by the sun s rays causes differences in temperature, choose the best answer.


 

    Differences in temperature     