what is nytrogen?
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the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant.
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nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acid that make up protein , in nucleic acids , that comprise the hereditary material and life's blueprints for all cells , and in many other organic and inorganic compound .
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