Fact 1: Heating an egg causes a chemical reaction in the egg.

Fact 2: Heat is very important in cooking.

Given the two facts above, answer the question "What does cooking an egg cause?" with the following options: 
- depress neuronal excitability
 - hatching of the egg
 - melting of the egg
 - Something that causes allergies
 - freezing of the egg
 - chemical reaction in the egg
 - death and devastation
 - DNA damage and mutations


 

      chemical reaction in the egg   