You are presented with the question "What causes hurricanes on the Earth's surface?" and the following answer choices: 
- uneven heating
 - volcanoes
 - hurricanes
 - Physical weathering
 - It gets heated up
 - Water expanding
 - even heat
 - Greenhouse gases

Now knowing that uneven heating of the Earth 's surface cause wind and hurricanes are made of wind, choose the best answer.


 

 uneven heating        