Chemical energy is the potential of a chemical substance to undergo a chemical reaction to transform into other substances. Examples include batteries, food, gasoline, and etc. Breaking or making of chemical bonds involves energy, which may be either absorbed or evolved from a chemical system.
Would advise you use your own words
light and heat are given off as a result of converting the input energy which i would guess is electrical energy or in case of gas or oil its chemical energy
if it help pick as best :)
Adaptability. it helps it survive in its environment