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51 Cards in this Set

  • Front
  • Back
What are the major greenhouse gases?
CH4, CO2, O3, H2O, N2O, CFCs
What are the effects of the gases based on?
Abundance of the gas and its ability to absorb heat
Which greenhouse gas is most abundant?
CO2
Describe the Greenhouse Effect
short UV rays are emitted by the sun these are absorbed or reflected by the greenhouse gases, long rays are more probably trapped--this results in an increase of temperature
Which wavelength do incoming waves have?
Short (UV)
Wavelength of outgoing waves?
Long (Infrared radiation)
What have been some global effects of global warming?
increase of temperatures, 1% increase of precipitation, 15-20 cm sea level rise,
Which greenhouse gas is most effective at trapping heat?
CFCs
Sources of ozone?
photochemical smog
Sources of CFCs?
spray cans, foam, solvents, refrigerators
Effects of global warming on agriculture?
effects on crops (positive or negative), distribution of crops
Effects of global warming on water resources?
decreased quality, floods more likely, droughts more severe
Effects of global warming on species and natural areas?
loss of cold water fish habitat, loss of species, desertification
Effects of global warming on health?
greater risk of diseases like malaria, because life cycles of pathogens and insects affected
Effects of global warming on forests?
summer droughts, more forest fires, possible faster growth due to increased precipitation
Effects of global warming on coastal areas?
Increased flooding, more erosion
Carbon dioxide vs. Methane in effectiveness?
CH4 30 Times as efficient,
relative effectivnes of CO2
1
relative effectivness of methane
30
Carbon dioxide vs. N2O in effectiveness?
160
Carbon dioxide vs.O3 in effectiveness?
2000
Carbon Dioxide vs. CFCs in effectiveness?
10000-25000 times
O3 usefulness outside the troposphere
Reflects UV rays
Contribution of CO2 to global warming?
50-60%
Contribution of CH4 to global warming?
15-18%
wavelength of uv light
short
atmospheric lifespan of CO2
200-500 years
Contriubution of CH4 to global warming?
15-18%
Contribution of N2O to global warming?
6%
Contribution of O3 to global warming?
12%
Since when has global warming significantly increased?
Industrial Revolution
Contribution of CFCs to global warming?
8-14%
atmospheric lifespan of CFC's
80 years
atmospheric lifespan of CH4
7-10 years
atmospheric lifespan of N2O
120-250 years
What is the long bond in the Ozone Structure called?
A dative bond
What are CFCs found in?
spray cans, old refrigerators, solvents
Sources of CH4
anaerobic decomposition of organic matter, ruminant animals, rice paddies and oil and gas fields
Increase of concentration since industrial revolution. CO2, CH4, N2O
CO2 up 25% CH4 up 145%, N2O up 15%
Short wavelength sunlight has a .... frequency
high
Sources of H2O
evaporation of water, hydrocarbon combustion
Sources of CO2
fossil fuel combustion, forest fires, decay
Sources of N2O
bacterial action, nitrogen-based fertilizers
What effect does Global Warming have on Agriculture?
crop yields will (not) thrieve, geographic distribution
What is the evidence aquired that shows Global Warming?
Surface and ocean temperatures increase.
Sources of O3
photochemical smog
Effects of enhanced global warming
increase in avarege temperature, 1% increase of percipitation and about 15-20 cm rise in sea levels
Long wavelength sunlight has a .... frequency
low
What is the most common greenhouse gas?
Watervapour, H2O (g)
What does the layer of CO2 in the Green House effect do?
Absorbs and traps heat
The worldwide rise in sea level was
15 - 20cm