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Atmosphere

  • Game Code: 175298
  •  English    8     Public
    about the atmosphere importance and oxygen gas
  •   Study   Slideshow
  • Represents 78% of the atmosphere
    Nitrogen
  •  15
  • It is a mixture of different gases that surround the earth
    Atmosphere
  •  15
  • the percentage of oxygen in the atmosphere
    21
  •  15
  • Is a chemical substance that remains without any change in its quantity and structure during the chemical reaction.
    catalyst
  •  15
  • we can prepare oxygen on lab
    True
  •  15
  • It is a mixture of different gases that surround the earth. (Attracted by gravity)
    atmosphere
  •  15
  • Importance of atmosphere
    correct
  •  15
  • The most abundant gas.in atmosphere
    nitrogen
  •  15
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