For the examples given, health promotion would be the education of the public about substance abuse. They are putting the idea of substance abuse being bad in the public's head. Thereby, attempting to improve public health although, there's no guarantee.
Banning smoking in public places is a "health protection" because it's a physical act that is attempting to make the public health better.
Testing food if also a "health protection" because it's a physical way to make sure that people do not end up with foodborne illnesses or hepatitis' related to dirty food/soil/etc.
welll ummmmmmmmmmm when you don't do nothing
The answer is enzymes. Chemicals are organic atoms that go about as impetuses and help complex responses happen wherever in life. Suppose you ate a bit of meat. Proteases would go to work and help separate the peptide securities between the amino acids.
