Consider the following gases: 1. Argon 2. Oxygen 3. Nitrogen 4. Carbon – McqOptions

MCQOPTIONS

1.	Consider the following gases: 1. Argon 2. Oxygen 3. Nitrogen 4. Carbon dioxide What is the correct sequence of these atmospheric gases in descending order of their percentage of volume?
A.	1,2,3,4
B.	4,3,2,1
C.	3,2,4,1
D.	3,2,1,4
Answer» E.

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