Which of the following statements is correct?
  • 1

    Inhaled air does not contain carbon dioxide

  • 2

    Both inhaled air and exhaled air contain oxygen

  • 3

    Exhaled air does not contain oxygen

  • 4

    Exhaled air does not contain carbon dioxide

Answer:- 2
Explanation:-

 Both inhaled and exhaled air contain oxygen and carbon dioxide. But inhaled air contains• more oxygen to create energy• less carbon dioxide and exhaled air contains• more carbon dioxide• less oxygen

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