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Khamis, 19 September 2019 

Fakta-fakta menarik tentang atmosfera


Gravity holds the atmosphere close to the Earth. It is divided into various layers according to differences in temperature:

  • The Troposphere:
    • We live in the Troposphere
    • It contains more than 75% of the atmosphere
  • The Stratosphere:
  • Most of the clouds and rain are in this layer
  • It extends up to 48km above the earth!
  • The ozone layer is between the Stratosphere and Mesosphere
  • The Mesosphere:
    • This layer extends to 80km above the Earth!
  • The Thermosphere
    • Here the air is very thin
    • Over 99.99% of the atmosphere lies below this layer
    • It is comprised of:
      • The Ionosphere:
        •  Reflects radiowaves back to Earth so signals can be sent around the world
      • The Exosphere:
      • This layer begins at ~480km above the Earth and fades away into space

Did you know...The mixture of gases in the atmosphere has taken over 4.5 billion years to evolve.About 99% of the atmosphere is made up of oxygen and nitrogen. The remainder is made up of argon, carbon dioxide and very small amounts of hydrogen, ozone, methane, carbon monoxide, helium, neon, krypton and xenon. 

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