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)
Artery carries it to the lung. Artery - lung. Always a good thing to remember.
Family environment, ability or disability, the attitude of peers, social media, and cultural background
Because this is who we are and it is just the way of life that you are born and developed in the body were in
