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What is air made up of

What is air made up of?

  • The air is a mixture of gases.

  • The air around us is called the atmosphere.

  • The most abundant gas in the air is nitrogen. Air is composed of 78 percent of nitrogen.

  • The gas that makes up about one fifth of the air is oxygen because it's 21%.

  • The amount of carbon dioxide in the air is a very small number, which is less than one percent.

  • If carbon dioxide increases in the atmosphere, it will be a problem.

  • There are other gases like argon and methane that exist in small amounts.

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