Chapter 20 section 1 review page 500
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Chapter 20 Section 1 Review Page 500. 1. Describe how water temperature affects the ability of the ocean water to dissolve gases. Warmer water is less able to dissolve gases than cooler water. (Think of a warm vs. cold soda). 2. Summarize how freezing and evaporation affect salinity.

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1 describe how water temperature affects the ability of the ocean water to dissolve gases
1. Describe how water temperature affects the ability of the ocean water to dissolve gases.

  • Warmer water is less able to dissolve gases than cooler water.

    (Think of a warm vs. cold soda)


2 summarize how freezing and evaporation affect salinity
2. Summarize how freezing and evaporation affect salinity. ocean water to dissolve gases.

  • They can increase salinity. As water freezes or evaporates the salts are left in the water.


3 describe the composition of ocean water
3. Describe the composition of ocean water. ocean water to dissolve gases.

  • Ocean water is a mixture of water, dissolved solids (such as chlorine and sodium), and gases (such as oxygen, nitrogen, and carbon dioxide).


Salts in ocean water
Salts in Ocean Water ocean water to dissolve gases.


4 define thermocline
4. Define thermocline. ocean water to dissolve gases.

  • A layer in a body of water in which the temperature drops faster with increased depth than it does in other layers.


Thermocline
Thermocline ocean water to dissolve gases.


5 describe how temperature and salinity affect the density of ocean water
5. Describe how temperature and salinity affect the density of ocean water.

  • Ocean water becomes denser as temperature decreases and salinity increases.


Density vs depth
Density vs. Depth of ocean water.


6 explain how the density of ocean water drives the movement of deep ocean currents
6. Explain how the density of ocean water drives the movement of deep ocean currents.

  • Cold, salty, dense water at the poles sinks and flows beneath warmer less dense water that is near the equator.


Deep ocean currents
Deep Ocean Currents movement of deep ocean currents.


Ocean currents surface deep
Ocean currents surface/deep movement of deep ocean currents.


7 explain why shallow ocean water appears to be blue in color
7. Explain why shallow ocean water appears to be blue in color.

  • When sunlight penetrates the ocean, the ocean water reflects the wavelengths of blue light and absorbs all other colors.


8. Why would surface water in the North Sea be more likely to contain a higher percentage of dissolved gases than the surface water in the Caribbean Sea?

  • Surface waters in the North Sea are colder and colder water can hold more dissolved gases than warmer water.


9 if global temperatures increase how would this change affect the ability of oceans to absorb co 2
9. If global temperatures increase, how would this change affect the ability of oceans to absorb CO2?

  • Warmer water cannot hold as much dissolved gas as colder water so more CO2 would accumulate in the atmosphere.


The end
THE END?????? affect the ability of oceans to absorb CO


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