You are presented with the question "What does a fire require to burn?" and the following answer choices: 
- A transportation fuel
 - Something with exactly 2 protons
 - chemical to mechanical energy
 - Something with exactly eight protons
 - Something with exactly 1 proton
 - Burning fuel and air
 - igniting fuel and oxidiser
 - Something with 7 protons

Now knowing that afire requires oxygen to burn and oxygen has  eight protons and eight electrons, choose the best answer.


 

    Something with exactly eight protons     