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.
Answer: Have a balanced diet
Explanation:
diet
The term yardstick refers to what is a normal response. It really has nothing to do with a yardstick and can be used in many situations. A yardstick is a measurement that has been tested over and over and than that measurement becomes the standard.
Say the yardstick for a reaction time is 5 seconds
Meaning that is what a normal healthy person can do it in.
Joan has the reaction in 4.8 second. Well she is on the the bell curve and did better than the yardstick test measure.
follow all instruction given and dont taste what ever it is
Explanation:
Soccer since you play with a team.
