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.
Bathing, deodorant, antiperspirant
Epistaxis is the word you are looking for
According to verywellfit “Cardio exercise simply means that you're doing a rhythmic activity that raises your heart rate into your target heart rate zone, the zone where you'll burn the most fat and calories.”
B lack of safety equipment
