Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place? A. Where are the bronchi meet the bronchioles

B. Where the blood meets the cells

C. Where the nasal passages meet the air

D. Where are the alveoli meet capillaries

The Answer is Option D.

Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.

D. Where are the alveoli meet capillaries

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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