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  • Science: Human Body Systems Quiz
  • When you exhale or breathe out, your body releases ______...
Multiple choice

When you exhale or breathe out, your body releases _____________.

  1. oxygen

  2. carbon dioxide

  3. nitrogen

  4. hydrogen dioxide

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cellular respiration produces carbon dioxide as a waste product, which is then transported by the blood to the lungs to be exhaled.

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