LUNGS, OZONE, & WHAT THEY DO FOR YOUR BODY

LUNGS
What role do lungs play in your body? Where in the body are the lungs located? What other structures make up the respiratory system? How does the respiratory system deliver oxygen from the atmosphere to the lungs of an air-breathing vertbrate? How does the repiratory system move oxygen from the lungs into the bloodstream abd carbon dioxide from blood into the lungs? How does the structure of alveoli cells aid gase exchange?
OZONE
What is Ozone? When is Ozone "good"? When is Ozone "bad"? Why is Ozone depletion a public concern?
OZONE & YOUR BODY
How does your body defend itself from Ozone? How can you help your body defend itself from Ozone? What is today's air quality in your local area?