What is the third most common gas found in the air we breathe ?
A) Argon
B) Neon
C) Carbondioxide
D) Hydrogen
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Argon is the third most common gas in the air we breathe
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Answer: Option (A) is the correct answer.
Explanation:
It is known that air is a mixture of different gases. Gases present in this mixture are nitrogen about 78%, oxygen about 21% and argon about 1%.
This means that in air oxygen is the primary gas that humans inhale. After that, second gas that we used to inhale is nitrogen followed by argon.
Air also includes carbon dioxide, helium, methane, xenon etc in small amounts.
Therefore, we can conclude that argon is the third most common gas found in the air we breathe.
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