Question

AN EXAMPLE OF A AN EXOTHERMIC REACTION.

Answer 1

http://antoine.frostburg.edu/chem/senese/101/thermo/faq/exothermic-endothermic-examples.shtml

making ice cubes

Answer 2

Aerobic respiration, the opposite of photosynthesis (which is endothermic, the 'mirror image' of respiration).
Burning (of coal, wood, oil).
Nuclear reactions MAYBE (they are exothermic, but not all, and I don't know if your teachers would accept it).

Answer 3

adding concentrated HCl to a small volume of water

Answer 4

an exothermic reaction typically releases light or some other kind of energy. Striking a match would be an example of an exothermic reaction.

Answer 5

Thank you all :)