I am still in pain!!!! What has happened just now was unexpected. The rusted nail just poked my feet. Finally I realized that redox reaction do occurs in our daily life. Corrosion of nail and dental amalgam are some of the examples. As for the food chain exists in our life, it is the example of 1st and 2nd Law of Thermodynamic. When I was cycling, I realized that the energy changes from kinetic to chemical. It obeys both laws too. Dissolving of sugar in coffee shows that entropy increases.
