You are presented with the question "What converts heat energy into mechanical energy?" and the following answer choices: 
- animal transport
 - kinetic energy
 - all animals
 - dangerous
 - an engine
 - objects that have mass
 - tropical cyclones
 - electricity

Now knowing that hurricanes convert heat energy into mechanical energy and hurricanes A hurricane is a type of tropical cyclone, choose the best answer.


 

       tropical cyclones  