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

Fact 2: Winds are a key factor in determining global weather patterns.

Given the two facts above, answer the question "What is a key factor determining global weather patterns?" with the following options: 
- influenza orthomyxoviruses
 - Something with a head, thorax, and abdomen
 - The atmosphere
 - Water density
 - Underground movement
 - Unequal heating of the earth
 - health
 - the sun's energy


 

      Unequal heating of the earth   