Exosphere  Uppermost layer  Beyond this lies space.

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Presentation transcript:

Exosphere  Uppermost layer  Beyond this lies space

Thermosphere  Km  Temperature goes up as altitude goes up  Hottest layer, but doesn’t feel hot  Very few particles

Ionosphere  Between mesosphere and thermosphere  Home of Auroras (Northern and Southern Lights)  Radio waves are reflected to Earth Ionosphere Video Link

Mesosphere  49-81Km  Coldest layer  Temperature goes down as altitude goes up  Meteors burn up in this layer ◦ Why would they “burn” when this layer is cold? ◦ First layer with enough air particles to make contact and destroy by friction.

Stratosphere  Km  Air is thin and has little moisture  Lower part extremely cold, Average -60  Temperature goes up as altitude goes up  Rise happens because of ozone layer  Most jets fly here -Ozone layer  Protects life on Earth by absorbing harmful UV radiation Stratosphere Video Link

Troposphere  Up to 17 Km above Earth  Layer we live in  Lowest layer of the atmosphere  Densest layer (has most air molecules)  CO2, Water vapor, clouds, air pollution, weather, life forms  Temperature goes down as altitude goes up  Airplanes fly here