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Essay on oxygen with fully explanations..............​

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ong>Answer:

It is pale blue when it is liquid or solid. Oxygen is PART of the chalcogen group on the periodic table. ... Oxygen is a part of WATER, which all known life needs to live. Algae, cyanobacteria and plants make the Earth's oxygen gas by photosynthesis, using the SUN's LIGHT to get hydrogen from water, giving off oxygen.

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