Fact 1: Fire converts chemical energy into light and heat energy.

Fact 2: Early in human history, energy was first used by people for heating, lighting, and cooking.

Given the two facts above, answer the question "Fire converts energy into something people use for what?" with the following options: 
- survival
 - food
 - mating
 - exercise
 - removing
 - cooking
 - warmth
 - stealing


 

      cooking   