You are presented with the question "What type of energy does a wind turbine use to convert wind energy?" and the following answer choices: 
- energy
 - unidirectional
 - mechanical
 - thrust
 - waves
 - rays or beams
 - direct energy
 - adding heat

Now knowing that awindmill converts wind energy into electricity primarily by using mechanical energy and today, new kinds of windmills, called wind turbines, generate electricity, choose the best answer.


 

   mechanical      