Oceanic Profile and Zones

Temperature and salinity affect the ______ of water.

• none of the other choices
• wave speed
• depth
• density

Water that has greater density ______ .

• sinks
• rises
• spins clockwise
• is warmer

The gently sloping submerged surface extending from the shoreline

• Seamounts
• Continential Shelf
• Continential Rise
• Continental Slope

Thermohaline circulation refers to the movement of ocean water in surface currents.

• True
• False

Adding salt to water makes it less dense.

• True
• False

Which of the following is not a process that decreases the salinity of seawater?

• runoff from land
• icebergs melting
• precipitation
• evaporation

The highest salinity would be found in which of the following areas?

• an area with high rates of precipitation
• an area with high rates of evaporation
• an area with plenty of runoff
• all of the above

The ocean layer of rapid temperature change with depth is known as the 

• trophic level
• deep zone
• mixed zone
• themocline

In addition to salinity, what factor affects the density of seawater?

• depth
• latitude
• temperature
• salt content

Where would you find the lowest density seawater?

• surface zone
• deep zone
• transition zone
• abyssal zone