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26-02-2021
Chemistry

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Air is a mixture of various gases. One of the gases is 21% part of the air and is essential for the survival of human beings. This gas is

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SLS102103 SLS102103

26-02-2021

Answer:

Oxygen

Explanation:

Oxygen is 21% of the gases that make up our air

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26-02-2021

Answer:

oxygen

Explanation:

Nitrogen is 78%

oxygen is 21%

carbon dioxide is 0.02%

and water vapour and sometime Noble gas varies

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