Getting the right trainer, and keeping tight schuedle on when you need to train.
Hihi!
The correct answer would be that Diarrheal Diseases - Food Washing, Hepatitis - Avoidance of IV Drugs, and Mumps - Vaccination! If you need anymore help be sure to ask!
I hope I helped!
-Loliarual
False the right answer would be the fulcrum.
The answer is 2, the condition of the environment affects everything it inhabitants.