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

Fact 2: Unequal absorption of radiation causes unequal heating of the earth's surface.

Given the two facts above, answer the question "heating causes the wind patterns on earth to be what?" with the following options: 
- evenly distributed
 - waves
 - equal
 - constant
 - threatened
 - supersonic
 - unequal
 - Tropical


 

       unequal  