You are presented with the question "Fire converts energy into something people use for what?" and the following answer choices: 
- survival
 - food
 - mating
 - exercise
 - removing
 - cooking
 - warmth
 - stealing

Now knowing that fire converts chemical energy into light and heat energy and early in human history, energy was first used by people for heating, lighting, and cooking, choose the best answer.


 

      cooking   