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Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
Atmosphere
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Atmosphere

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Transcript

  • 1. Unit 10:Atmosphere Layers
  • 2. I. Atmosphere or “air” thin layer of gases that surrounds Earth. Extends from surface to hundreds of km above surface.
  • 3. A. 78% N, 21% O2qremaining 1% CO2,He, Ne, Ar, H2Ovapor, & others.
  • 4. B. Protects us from UVC. Helps keep Earth warm
  • 5. II. The Five Layers
  • 6. A. Troposphereqextends fromEarth’s surface toabout 10 km (6 mi.)above surface
  • 7. 1. it’s the air we breathe2. mostweatheroccurs here
  • 8. B. Stratosphereqextends from 10km to 45 km (28 mi)above Earth
  • 9. 1. very thin air2. not as turbulent as troposphere
  • 10. 3. planes fly in lower part of stratosphere4. contains the ozone layer
  • 11. C. Mesosphere 45-80kmD.Thermosphere 80-500km
  • 12. E. Exosphere 500km onqgases get thinner and thinner
  • 13. q Biosphere - The layer around the Earth in which life occurs naturally, extending to about 8km above the Earth to the deepest part of the ocean, which is 8 km deep

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