You are presented with the question "Which is an example of a chemical reaction?" and the following answer choices: 
- Deoxyribonucleicacid
 - Scrambling eggs
 - electricity
 - Pollution
 - Allergies
 - deoxyribonucleic acid
 - hydrogen and oxygen
 - Pesticides

Now knowing that heating an egg causes a chemical reaction in the egg and over medium heat, scramble the eggs, choose the best answer.


 

  Scrambling eggs       