what is oxygen and importance of oxygen
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Oxygen plays a critical role in respiration, the energy-producing chemistry that drives the metabolisms of most living things. We humans, along with many other creatures, need oxygen in the air we breathe to stay alive. Oxygen is generated during photosynthesis by plants and many types of microbes.
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Oxygen is a gas in atmosphere and is a very important gas.... It supports life and fire on earth........... And is an important component in both, atmosphere and biosphere
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