Where does the exchange of gases take place in the human respiratory system?

CBSE Class 7 CBSE Class 7 Science
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1
  1. Where does the exchange of gases take place in the human respiratory system?
  2. Draw a neat and labeled diagram of the human respiratory system.
2
  1. The exchange of gases between air and blood takes place across the walls of the alveoli.
  2. The human respiratory system:
    image