Answer:
i think it's D
Explanation:
cuz it is good to set boundaries.
B. The air you breathe.
Because the rest of the choices are not environmental factors. Gang activity, and access to jobs and education are not environmental because environment are things about the world.
This is referred to as Blood Alcohol Concentration or BAC. This is usually represented as a decimal below one. The level of this BAC also determines if you are considered driving under influence (DUI).
Hope this helps!
Obesity refers to an excessive accumulation of body fat.