12. Give two uses of oxygen gas and nitrogen gas present in the air.
Answers
Answered by
0
Answer:
Oxygen gas :
Breathing, Burning
Nitrogen gas :
Fertilizers, Dyes.
Explanation:
Answered by
1
Answer
*oxygen is used for respiratory function in human being
*oxygen is needed for burning(combustion)
Nitrogen
*important for chemical industry
*helpful for making fertilizers
Amount of oxygen and nitrogen present in atmosphere:
*oxygen- 21 percentage
*nitrogen-72 percentage
Explanation:
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