climatechangereviewmidterm#1 - 10:59:00 PM How old is the...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
03/10/2007 00:59:00 How old is the earth?  ½  billion years old  life on planet has always been  changing   suttle  changes with sun/earth relationship can have dramatic changes earth sits on a axis (parts will be exposed while others are not.  distance matters (away from sun) rays of sun must pass through atm made  up of  oxygen, water, and carbon dioxide all that regulate the temperature of  the planet  greenhouse gases.  Wavelengths  measured in cm  water (more capacity to absorb energy)  land  less capacity  snow and ice (deflected back into space)—reflected  back  longer wavelengths.  earth is a system of integrated parts. climatic system= Earth system What is the outermost layer of the earth called? Middle? Innermost?  atmosphere, crust, mantle, outer core, inner core.  What are the different types of plate tectonic boundaries? mantle sphere is semimoultin  not hard like crust  crust is floating on  semimoultin sphere. Crust is broken into plates  which are separated into  ridges. (mountain at edge of ocean) convection  heat added to a body will cause body to expand   become  buoyant and then become less dense then mantle around it and rises and  begins to cool  as it cools it will become more dense again and sinks  rises  and sinks again  known as convection.  pacific crust is diving under continental crust.   Draw a profile showing the vertical structure of the atmosphere on the  basis of temperature and pressure  atm into different layers  pg 22 only two lowest are critical with climate change o troposphere  which extends from 8-18 kil  both the layer which we  live and which most of earths weather happens  80% of the gases  that form earths atm are contained here.   cool--. rising and falling of  air molecules.  temperature decreases with height
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
o Stratosphere  extending up 50 kil.   only largest storms penetrate  stratosphere  contains small amounts of oxygen, and ozone  which  block ultraviolet rays arriving from the sun. --. very good traveler of  heat and therefore it heats again  atm begins to warm again as you  go higher and higher into atm.   increases with height  o mesosphere  50-80 decreases with height o Thermosphere   above 80  increases with height.  atm pressure is highest at the surface --.  atm pressure  force of gravity on  the mass of molecules that make up the atm.  gravity acting on the mass that makes up the atm is causing this downward  force. and where you find the greatest number of molecules you find the 
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern