chapter1 - Weather the condition of the atmosphere at a...

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Weather- the condition of the atmosphere at a particular location and moment. Meteorology- the study of weather variables, the processes that cause weather, and the interaction of the atmosphere with the Earth’s surface, ocean, and life. Climate- the condition of the atmosphere over many years. Atmospheric Gases: Nitrogen (78.08%), Oxygen (20.95%), Argon (0.93%), Trace gases (carbon dioxide, methane, ozone, CFCs, water vapor) Carbon Cycle Nitrogen accumulating over billions of years (chemically stable gas), Oxygen from algae accumulation photosynthesis, Carbon dioxide from volcanoes Source (supplies gas), Sink (removes gas) CO2 maximum in spring, minimum in autumn (In summer, photosynthesis at maximum removing CO2, in winter, photosynthesis at minimum, adding CO2 from decaying organisms and plants) Ocean contains 50 times more CO2 than atmosphere-accumulates at bottom of ocean Hydrologic Cycle Evaporation from oceans is major source of atmospheric water vapor
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chapter1 - Weather the condition of the atmosphere at a...

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