Question

oxygen comprises of two gases which are those​

Answer 1

Answer:

h2o and 02

Explanation:

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Answer 2

Answer:

Air is a mixture of 21% oxygen, 78% nitrogen, and approximately 1% other trace gases, primarily argon; to simplify calculations this last 1% is usually treated as if it were nitrogen. Being cheap and simple to use, it is the most common diving gas.