All the following are examples of chemical changes EXCEPT?

basically, perspiration is not a chemical change, more of a physical reaction to heat by our body.photosynthesis is the action of chemical change which is converting heat energy to chemical energy. respiration is well not a chemical change but a normal body function. fermentation...yeah you could say its a chemical change since it involves the change of chemical composition like cheese for example, it comes from milk and it changes in salt content. aging is well, duh obviously a physical change because the chemical composition of an aging matter does not change but merely grows older.