10th Class Science Life Processes Question Bank 10th CBSE Science Life Processes

  • question_answer
       State in brief the role of lungs in the exchange of gases.       

    Answer:

                      Lungs are the main respiratory organs where exchange of gases takes place. Oxygen is taken in while carbon dioxide is given out through nostrils. Alveoli present in the lungs, which provide a large surface area for exchange of gases.     (2)


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