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78% of the air is Nitrogen Nitrogen is a chemical element

78% of the air is Nitrogen Nitrogen is a chemical element Nitrogen is A colourless,odourless and taste less diatomic gas Nitrogen was discovered by a Scottish Physician Daniel Rutherford in 1772 Nitrogen is a common element in the universe

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78% of the air is Nitrogen Nitrogen is a chemical element

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  1. 78% of the air is Nitrogen • Nitrogen is a chemical element • Nitrogen is A colourless,odourless and taste less diatomic gas • Nitrogen was discovered by a Scottish Physician Daniel Rutherford in 1772 • Nitrogen is a common element in the universe • Nitrogen can easily poured when it is liquid nitrogen

  2. Oxygen is a chemical element • 20% of the air is oxygen • Too much oxygen is as dangerous as too little oxygen • Liquid oxygen is a type of oxygen • Plants breathe out oxygen which helps us to breathe • Oxygen helps fires burn

  3. 0.03% of the air is Carbon Dioxide • Human beings breathe out carbon dioxide which helps plants during photosynthesis • Carbon Dioxide is a green house gas like methane • CO2 is another short way of carbon dioxide

  4. Water Vapour can be produced from the evaporation or boiling of a liquid • You never know how much water vapour is in the air

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