chapter 3 notes.txt

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chapter 3 notes.txt
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Chapter 3 notes
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  1. Who was Jean-baptiste Joseph Fourier. what did he do and what was significant about him?
    French mathematician who Compared earth�s atmosphere to the glass of a greenhouse but didn�t know mechanism or gases involved
  2. who was John tyndall? what was his ocupation and what was significant about him?
    Irish Physicist. Demonstrates CO2 and H2O vapor absorb heat radiation. Calculates warming effect resulting from presence of CO2 and H2O in atmosphere
  3. who was svante arrhenius? what was his ocupation and what was significant about him?
    swedish scientist. considered potential problems that could arise from buildup of co2 in the atmosphere. concerned co2 build up from burning coal.
  4. who was roger revelle? what was his ocupation and what was significant about him?
    U.S. Oceanographer. In 1957 suggests increasing greenhouse gases in atmosphere could cause rise in temperature
  5. What light is able to enter through glass?
    UV and visable light. not infrared
  6. How is the greenhouse effect like the build up of heat in a car?
    The sun's energy passes through the windows. the energy that gets re-radiated from the intiror can not pass out of the car because it is now infered light
  7. what are some examples of gree house gases?
    water vapor, carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons.
  8. what is the definition of the green house effect?
    the natural process by which atmospheric gases trap a major portion of the infrared radiation radiated by the earth.
  9. what happens when greenhouse gases absorb radiation.
    it reemites IR radiation (heat)
  10. what was the atmosphere like during earth's early days? why is this important?
    4.5 billion years ago co2 concentractions were 1000 times what they are today. This was important because the sun was young and cold.
  11. When were the first signs of life?
    3.8 billion years ago
  12. When did photosynthesis appear?
    3 billion years ago.
  13. what happened because of the introduction of photosythasys
    increase in O2 concentrations and a decrease in co2 concentration kills most life on the planet
  14. The removal of life cause what two things to becoming missing?
    Iron from the ocean and methane which was a bountiful green house gas.
  15. What causes the eath to warm up?
    co2 from volcanic activity gets things started. as ice melts the earth warms and more ice melts and so on.
  16. how has life servived up to this point?
    Life servives near hydrothermal vents and in underground rocks.
  17. what is the CO2 concentration in 2011?
    380ppm.
  18. What does the Ice core data tell us?
    there has been a large increase in co2 over the past 200 thousand years which is abnormal from the normal pattern.
  19. Does the concentrations of co2 parallel changes in temperature?
    yes
  20. WHat things contribute co2 into the carbon cycle?
    respiration deforestation, fossil fuel buring, and the ocean.
  21. What things absorbe the co2 coming from the carbon cycle?
    reforestation, photosynthesis, and the ocean.
  22. What are some sorces of methane gas?
    natural gas, decaying organic matter, and anaerobic bacteriasuch as those in cattle intestines as well as termites interestines
  23. hat is the chemical make up of methane
    CH4
  24. Is methane a high or low atmospheric lifetime?
    low (12 years)
  25. How much more efective is methane gas for trapping heat than co2
    20 times
  26. What is the chemical make up of nitrous oxide?
    n2o
  27. does Nitrous oxide has high or low atmospheric lifetime?
    High (114 years)
  28. WHat is the common name for Nitrous oxide?
    laughing gas
  29. Where is nitrous oxide found?
    in bacterial activity in soil, fertilizers, industrial production of nylon and nitric acid

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