I think it's CARBON DIOXIDE
I am not sure.
Inward then upward, C! I know somebody already answered, but I'm just confirming that answer is correct as I took a class in this sort of stuff! :)
Answer:
State and
Local health departments
Explanation:
Because health workers in state and local departments are closer to people within their jurisdiction than at national level, their responsibilities include monitoring of health activities, disease control and sanitation; the funding and delivery of personal health services including Medicaid, mental health, and direct delivery through public hospitals and health departments at local and state levels; environmental protection, including protection against man-made environmental and occupational hazards.
Right wing left wing center
Supportive relationships.
All other answers are negative and unhealthy