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  • Excretion - Human Excretory System (Class X)
  • Which is the main gaseous waste product of the human body?
Multiple choice

Which is the main gaseous waste product of the human body?

  1. NH3

  2. CO2

  3. H2S

  4. O2

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

CO2 is the most important gaseous waste and is eliminated through the lungs.

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