science
Grade-4-
Easy

Question

Lungs in animals carry______ to the blood and remove _____ from the blood.

  1. Oxygen, carbon dioxide
  2. Oxygen, nitrogen
  3. Carbon dioxide, oxygen
  4. Nitrogen, carbon dioxide

hintHint:

We inhale oxygen and exhale carbon dioxide through respiration with the help of lungs.

The correct answer is: Oxygen, carbon dioxide


    Oxygen, carbon dioxide
    • Animals have lungs as respiratory organs.
    • Lungs carry oxygen to the blood.
    • Lungs also carry carbon dioxide from the blood.

    • Lungs helps to release out carbon dioxide from the body.
    • Lungs help in intake of oxygen.

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