Fact 1: Powering an electrical device with a battery requires a path for electricity to flow through a closed circuit.

Fact 2: Batteries are electro-chemical devices.

Given the two facts above, answer the question "An electrical device can be powered with what device?" with the following options: 
- direct energy
 - electrically
 - broken
 - electroverse
 - hydrogen and oxygen
 - operated
 - electromagnetic energy
 - electro-chemical


 

        electro-chemical 