THE ATMOSPHERE

THE ATMOSPHERE

1. It has different layer

   • Troposphere
     • Is 12 km above sea level. This is where we find ideal conditions for life. We also find meteorological phenomena, such as wind and rain here. The troposphere contains 90% of the total mass of atmospheric gases.
   • Estratosphere
     • The gases that form the stratosphere move horizontally. The ozono layer is here, 25 km away from the Earth's surface. Temperatures increase as the altitude increases.
     • Ozono layer
       • The ozone layer filters out the sun's ultra violet rays.
   • Mesosphere
     • Temperatures drop to -100ºC. When small meteorites break up in the thermosphere, shooting stars appear in the mesosphere.
   • Thermosphere
     • Absorbs the most powerful radiation from the Sun, such as X-rays. That's why temperatures here can reach 1000ºC
   • Exosphere
     • Has a very low concentration of gases.

2. Functions of the atmosphere

   • Filters radiation
   • Meteorological phenomena
   • Contains essential gases
     • 78% Nitrogen
     • 21% Oxygen
   • Maintains the Planet's temperature
   • Thermoregulation
     • Atmospheric phenomena
       • Wind
       • Clouds
       • Precipitations
         • Fog
         • Rain
           • Dew and Frost
           • Mist
         • Snow
           • Sleet
         • Hail

3. Is the gaseous layer that soraund the Earth

   • Origen
     • Chemosinthetic bacteria
     • Photosynthetic bacteria

4. POLLUTION

   • BIOINDICATORS
     • Lichens
       • Very high pollution........ NO LICHENS
     • Crusty lichens
       • High pollution
     • Foliated lichens
       • Medium pollution
     • Fruticose and shrubby lichens
       • Low or no pollution
   • Types of pollutants
     • Natural pollutants
       • Dust, pollen, volcanic gases
     • Man-made pollutants
       • Chemical
         • Solid particles and gases
       • Physical
         • Noise and light. Radioactivity
   • Consequences
     • Greenhouse effect
     • Acid rain
     • The hole in the ozono layer
   • We can
     • Recycle
     • Save energy
     • Turn off lights
     • Walk more and use a bycicle
     • Buy local and seasonal products
     • Use a thermostat for heating and air conditioning

Bilder und Dateien der Mindmap

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• Enclavar (Einbetten)
• What is Acid Rain? | National Geographic (Einbetten)
• What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert (Einbetten)