Gases in the atmosphere

• Atmosphere is the collection of gases that surround the earth.

  Air is a mixture at the atmosphere near the surface
• PROPORTIONS OF GASES:

  Nitrogen - most abundant gas - 78%

  Oxygen - 21%

  Argon - 1%

  Carbon Dioxide - 0.03-0.04%

  Noble gases (Excluding Argon)- small proportions

  Water vapour - Varying proportions