You are presented with the question "What is a key factor determining global weather patterns?" and the following answer choices: 
- 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

Now knowing that unequal heating of Earth 's surface by the Sun causes global wind patterns and winds are a key factor in determining global weather patterns, choose the best answer.


 

      Unequal heating of the earth   