Answer:
Internal can be you don't want bad things happening to your body, you don't want drugs affecting your health,etc.External could be you don't want it to affect your family or people around you.For example, like a cigarette if you are smoking in public you can be affecting others passing by or hanging out with you(external)but if it's just you by yourself smoking it is damaging your lungs(internal)
Answer:
D
Explanation:
Because substance abuse is a Health problem
Answer:
Epidemiological study.
Explanation:
Epidemiology study is the study of diseases, conducted among populations of humans. Such a study highlights HOW the diseases happen, WHEN the diseases occur and WHERE the diseases occur.
The information gathered is necessary to strategize on how to stop the spread of the diseases, to prevent ailment and also as a guide to the care of the patients.
Epidemiologists also attempt to determine what factors are associated with diseases (risk factors), and what factors may protect people or animals against disease (protective factors).
