What is the most abundant gas in the atmosphere is argon oxygen nitrogen hydrogen

Hey there princesswalkeror4ori,

By far, the most abundant gas in the Earth's atmosphere is nitrogen, which accounts for about 78% of the mass of dry air. Oxygen is the next most abundant gas, present at levels of 20 to 21%. Although humid air seems like it contains a lot of water, the maximum amount of water vapor that air can hold is only about 4%.

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Dmight be the correct answer