Fact 1: Uneven heating of the Earth 's surface cause wind.

Fact 2: Wind belts arise because of the uneven heating of Earth s surface by the Sun.

Given the two facts above, answer the question "What does uneven heating by the Sun cause?" with the following options: 
- harm
 - energy
 - corn
 - Injury
 - cracks
 - wind
 - deadly
 - sweat


 

      wind   