g104_class6_carbon_cycle

g104_class6_carbon_cycle - Geography 104 -...

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Properties of Seawater Monday we talked about properties of water (Table 7.2) - dissolves solids and gases readily (“universal solvent”) Last time (Wednesday) we talked about dissolved solids (mostly salts) Today: Dissolved Gases - gas concentrations in seawater changes through air-sea interaction - saturation occurs when amount of gas entering = amount of gas leaving - conservative and non-conservative - nitrogen, oxygen, argon, carbon dioxide, and “trace gases” (ppb) Geography 104 - “Physical Geography of the World’s Oceans”
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solubility of gasses in seawater increases with: - decreasing temperature (bubbles in boiling water) - decreasing salinity - increasing pressure (expansion of warm carbonated drink)
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gases in atmosphere & ocean atmosphere ocean there are other “trace gases” (ppb)
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Carbon Dioxide - very important for photosynthesis (aquatic plants) Oxygen - very important for respiration (most aquatic animals) Nitrogen - required by primary producers (marine plants) in forms such as
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g104_class6_carbon_cycle - Geography 104 -...

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