Multiple choice

When inhaled, ___________ combines with the hemoglobin of our blood and reduces blood's oxygen carrying capacity.

  1. carbon monoxide

  2. carbon dioxide

  3. sulphur dioxide

  4. CFCs

  5. nitrogen oxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option. When inhaled, carbon monoxide combines with the hemoglobin of our blood and reduces blood's oxygen carrying capacity.

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