Monday, November 30, 2009
Volcano Review
Volcanoes and Climate Change (Last part of review sheet)
Volcanoes contribute to both the warming and cooling of the Earth.
Warming
CO2 emitted from the volcano adds to greenhouse gases. It absorbs infared radiation and heats the Earth.
Chlorine gases in the form of hydrochloric acid cause ozone depletion, which lets more radiation enter the Earth's atmosphere.
Cooling
Sulfur gases released from a volcanic eruption reflect some light back into space
Dust particles (ash clouds, etc) released from eruption also reflect some of the waves back to space.
Virtual Volcano Activity
Low Viscosity (both low and high gas) => Shield Volcano
Medium- low viscosity => Cinder Cone
High Gas (medium high and high viscosity) => Strato/ Composite Volcano
Picture from: http://mrsdlovesscience.com/greenhouse/greenhouse_effect.jpg
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Sorry I don't know why the fonts got all weird!
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