The Earth's atmosphere and The Greenhouse affect

• Our planet receives an abundant supply of life-giving energy from the sun
• The heat of the sun or solar energy also drives different atmospheric activities
• It is important for us to be familiar with the structure and composition of the Earth's atmosphere
• Atmosphere


  The envelope of air or gas that surrounds the Earth
• Layers of the atmosphere

  • Troposphere
  • Stratosphere
  • Mesosphere
  • Thermosphere
  • Exosphere
• Troposphere


  • Closest to the Earth's surface
  • Temperature just above the ground is hotter than the temperature high above
  • Weather occurs in this layer because it contains most of the water vapor
  • The air in the troposphere is constantly moving
• Stratosphere


  • The air in this layer is stable
  • Many jet aircraft fly in the stratosphere
  • Contains the ozone layer that absorbs much of the sun's harmful radiation
• Mesosphere


  • The air in this layer is very thin and cold
  • Meteors or rock fragments burn up here
• Thermosphere


  • Where space shuttles fly
  • Auroras appear in this layer due to the striking of hot solar winds in the pole's cold air
• Exosphere


  • The upper limit of our atmosphere
  • Merges into space
  • Satellites are stationed in this area
• How many percentagepercentage does nitrogen air have?

  78°/°
• How many percentage does oxygen have?

  21°/°
• How many percentage does co² have?

  17°/°
• Closest to the Earth surface

  Troposphere
• What is the air on Troposphere?

  Constantly moving
• What is the air on Stratosphere?

  Stable
• This is where many jet aircraft fly and where we can find ozone layer

  Stratosphere
• Air in mesosphere is

  Thin and cold
• Where meteors burn


  Mesosphere
• Where space shuttle fly and where Aurora's appear

  Thermosphere
• Satellites are here


  Exosphere