You are presented with the question "What do microbial fuel cells and electric generators both create?" and the following answer choices: 
- sunlight
 - electricity
 - vehicles
 - chemical energy
 - Greenhouse gases
 - engines
 - to move people
 - light

Now knowing that microbial fuel cells convert chemical energy into electrical energy and electric generators convert mechanical energy into electric energy, choose the best answer.


 

  electricity       