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Leonard Yang, Daniel Gesling, Anna Sheng.  Lowest layer of the Earth’s atmosphere  Greek word Tropos=“mixing”  Friction; air & earth’s surface  11km.

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Presentation on theme: "Leonard Yang, Daniel Gesling, Anna Sheng.  Lowest layer of the Earth’s atmosphere  Greek word Tropos=“mixing”  Friction; air & earth’s surface  11km."— Presentation transcript:

1 Leonard Yang, Daniel Gesling, Anna Sheng

2  Lowest layer of the Earth’s atmosphere  Greek word Tropos=“mixing”  Friction; air & earth’s surface  11km ML, 12km TR, 7km Poles http://images.google.com/imgres?q=la yers+of+the+atmosphere&hl=en&bi w=1440&bih=689&gbv=2&tbm=isch &tbnid=tB6CHcnNaQGXzM:&imgref url=http://www.vtaide.com/png/atmo sphere.htm&docid=XKkzfazcFvrU8 M&w=800&h=600&ei=yNZxTp2wC MP3mAWnyZzxCQ&zoom=1&iact=h c&vpx=178&vpy=184&dur=609&hov h=194&hovw=259&tx=116&ty=122& page=1&tbnh=131&tbnw=175&start =0&ndsp=22&ved=1t:429,r:0,s:0

3  Most weather occur here  Hosts earth’s water cycle  Purify and deliver water  Maintain earth’s natural thermostat http://www.whitegadget.com/attachments/pc-wallpapers/66321d1313124199- weather-weather-photo.jpg http://upload.wikime dia.org/wikipedia/co mmons/thumb/9/94/ Water_cycle.png/320 px-Water_cycle.png

4  Very warm (heat produced by earth’s surface) But…  Temperature drops  Tropopaus http://science.nasa.gov/media/medialibrary/2007/07/18/18jul_tc4_resources/layers_strip.gif http://apollo.lsc.vsc.edu/classes/met130/notes/chapter8/gr aphics/trop_hgt.free.gif

5  “Temperature In The Atmosphere” National Earth Science Teachers Association (NESTA) 2000 - 2010. © 2011 National Earth Science Teachers Association. 15 September 2011. http://www.windows2universe.org/earth/ Atmosphere/troposphere_temperature.html  “Troposphere” Universe Today. Copyright © 1999–2011. 15 September 2011. http://www.universetoday.com/41559/trop osphere/

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