Environmental Sciences, asked by kavithamerani, 1 year ago

what is the  percentage  of      oxygen

Answers

Answered by duragpalsingh
1
Atmosphere is known as the envelope of air.
There consist of 
1. Nitrogen (78%)
2. Oxygen (21%)
3. Argon (0.9%)
4. Carbon Dioxide (0.04%)
5. Small amount of other gases and water vapour

Hope it helps you! 
Answered by Namita11
2
hello!
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<> What is the percentage of oxygen in the air?

Answer: The percentage of oxygen in the air in 21%

》Oxygen is produced by plants by the process of Photosynthesis.

》Thats why its told to plant more plants in todays world due to pollution.

♡Hope this helps♥♥♥

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