chapter 7: physical and chemical oceanography

Oxygen can enter the water

• through respiration
• by product of photosynthesis
• decomposition
• oxidation of metals

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The layer in which temperature rapidly decreases

• halocline
• pycnocline
• thermocline

The amount of gas that seawater can hold in solution will be greater

• in warmer water
• in colder water
•  in salty water
• under less pressure

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Salinity is measured in 

• parts per million
• parts per thousand
• milligrams
• milliliters

Which of the following would not cause salinity to increase?

• Melting

• Increased volcanic activity

• Evaporation

• Freezing

the flow of water from land caused by precipitation

• salinity

• dissolution

• run off

• solvent

the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain

• biomagnification

• salinity

• run off

• precipitation

when a body of water has a salinity level greater than 35 ‰

• salinity

• dissolved oxygen

• hypersaline

• dissolution

the layer within the ocean where the concentration of dissolved oxygen is at its lowest, typically found between 100 and 1000 m deep

• photic zone

• aphotic zone

• oxygen minimum layer

• thermocline

Tides are not caused, or influenced by, this:

• Sun

• Water density

• Moon

• Earth's rotation