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. 
        
             
        
        
        
Eating healthy, exercising
        
                    
             
        
        
        
I’d say the first step is recognizing the need for help.
        
                    
             
        
        
        
TheyThey  should use proper protective equipment ( gloves,masks ,gowns) ,asceptic technique ,hand hygiene.
<h3>What is cause of leukemia? </h3>
Leukemia is a blood cancer in which the blood cells produce abnormal growth . It can be happen due to combination of genetic and environmental factors that can lead to mutations in the cells that make up the bone marrow. 
Due to leukemia they have to go for chemotherapy in which immunity of the person get Destroy , so they should be protected from air borne disease and microorganisms ,masks ,gloves , hygiene is necessary for them . 
to learn more about Leukemia click here brainly.com/question/21806829 
#SPJ4
 
        
             
        
        
        
Answer:
What causes eczema to ooze?
About eczema
Sometimes, tiny blisters containing clear fluid can form and the affected areas of skin can weep. Weeping is a sign that the dermatitis has become infected, usually with the bacterium Staphylococcus aureus ('golden staph'). Eczema is not contagious.
Explanation:
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