write something on oxygen
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Explanation:
pure oxygen are produced in several ways .plants produce oxygen by using sunlight carbon dioxide and water .this process is called photosynthesis .
most of the oxygen in the air is produced by photosynthesis .
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- Oxygen is the most precious and important gas in this atmosphere.It accounts for about 21% of the total percentage of gases in the atmosphere.
- It helps humans and animals by respiration which is essential to survive It helps in burning and so many other purposes.
- Oxgen is released by plants and trees by the process of photosynthesis.
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