You are presented with the question "What uses the flow of electrons?" and the following answer choices: 
- Typewriters
 - hydrogen and oxygen
 - an electron microscope
 - Electric devices
 - Manual devices
 - Bodies of water
 - circulatory systems
 - an electron lens

Now knowing that electric devices require electrical energy to function and electrical energy refers to energy associated with the flow of electrons, choose the best answer.


 

    Electric devices     