Answer: A.
Explanation:
Im pretty sure its A. Balance. All of them are important but balance is the main thing you'd need to know.
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:
Cause that's where they find mates!!!!
B) protein
C) fat
F) carbohydrates
