Multiple choice general knowledge science & technology

The lungs take oxygen out of the blood.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The lungs actually add oxygen to the blood, not remove it. During inhalation, oxygen enters the alveoli and diffuses into the bloodstream, while carbon dioxide (a waste product) is removed from the blood and exhaled. The lungs oxygenate blood.

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