You are presented with the question "what does a light bulb require to produce light?" and the following answer choices: 
- flow of electrons
 - flow of neutrons
 - the sun
 - adding heat
 - hydrogen and oxygen
 - an electron lens
 - h2o
 - chemical messengers

Now knowing that alight bulb requires electrical energy to produce light and electrical energy refers to energy associated with the flow of electrons, choose the best answer.


 

 flow of electrons        