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 transcript:

Leonard Yang, Daniel Gesling, Anna Sheng

 Lowest layer of the Earth’s atmosphere  Greek word Tropos=“mixing”  Friction; air & earth’s surface  11km ML, 12km TR, 7km Poles yers+of+the+atmosphere&hl=en&bi w=1440&bih=689&gbv=2&tbm=isch &tbnid=tB6CHcnNaQGXzM:&imgref url= 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

 Most weather occur here  Hosts earth’s water cycle  Purify and deliver water  Maintain earth’s natural thermostat weather-weather-photo.jpg dia.org/wikipedia/co mmons/thumb/9/94/ Water_cycle.png/320 px-Water_cycle.png

 Very warm (heat produced by earth’s surface) But…  Temperature drops  Tropopaus aphics/trop_hgt.free.gif

 “Temperature In The Atmosphere” National Earth Science Teachers Association (NESTA) © 2011 National Earth Science Teachers Association. 15 September Atmosphere/troposphere_temperature.html  “Troposphere” Universe Today. Copyright © 1999– September osphere/