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The percentage of hydrogen on earth is just 0.25%

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100% of hydrogen is lighter than air


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Which is represented in the highest percentage by volume in dry air a oxygen b nitrogen c carbon dioxide d hydrogen?

Nitrogen is the gas that is represented in the highest percentage by volume in dry air, at around 78%. Oxygen follows at about 21%, while carbon dioxide and hydrogen are present in much lower percentages.


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What percentage of the air is gas?

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Which of the following is represented in the highest percentage by volume in dry air 1oxygen 2nitrogen 3carbon dioxide 4hydrogen?

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