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.
Well, since there are no options
Swimming
Running
Cycling
These are a few examples
Hope they help :))
I believe the correct answer would be "different systems".
Hope it helps!
T . When you refuse to do something its cause you know it is wrong or you dont want to do it to be like everyone else .
