If unequal heating of earth's surface by the sun is a key factor in determining global weather patterns, then what is a key factor determining global weather patterns?

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

 

      Unequal heating of the earth    