Fact 1: Microbial fuel cells convert chemical energy into electrical energy.

Fact 2: Electricity is a kinetic energy.

Given the two facts above, answer the question "Microbial fuel cells convert chemical energy into " with the following options: 
- kinetic energy
 - Deoxyribonucleicacid
 - rays or beams
 - harmful substances
 - vehicles
 - sunlight
 - deoxyribonucleic acid
 - Greenhouse gases


 

 kinetic energy        