Fact 1: When an animal moves , chemical energy is converted to mechanical energy.

Fact 2: Mechanical energy can be changed to electrical energy.

Given the two facts above, answer the question "What can an animal's movement be changed to" with the following options: 
- they body they live in
 - solid, liquid, gas
 - heating liquids
 - protect them
 - electrical energy
 - objects that have mass
 - biodiversity
 - an object


 

     electrical energy    