3 Questions
What is the composition of air?
78% nitrogen, 21% oxygen, 1% other gases
Which gas is the most abundant in the Earth's atmosphere?
Nitrogen
What is the role of oxygen in the air?
It is essential for respiration in living organisms and combustion
Test your knowledge about the composition of air and the role of oxygen in the Earth's atmosphere with this quiz. Find out which gas is the most abundant in the air and how oxygen contributes to various natural processes.
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