Atoaster converts electrical energy into heat energy for toasting, and early in human history, energy was first used by people for heating, lighting, and cooking. Given these facts, toasters convert what into an energy that can also light and cook among the following options:
- hydrogen and oxygen
 - solar energy
 - deoxyribonucleic acid
 - electrical energy
 - objects that have mass
 - chemical messengers
 - water energy
 - wind energy


 

    electrical energy     