Ocean Salinity

Which process does NOT lead to a decrease in the salinity of water?

• runoff from land
• precipitation
• sea ice melting
• evaporation

Which term refers to a rapid change of temperature with increasing depth of the ocean?

• pycnocline
• thermocline
• abyssalocline
• isothermal cline

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

• depth
• latitude
• temperature
• salt content

What happens to pressure as you go deeper into the ocean? 

• increases
• decreases
• stays the same
• doubles

The salt that is in your salt shaker is the same salt that is in our oceans?

• true
• false

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

• runoff from land
• icebergs melting
• precipitation
• evaporation

What is the most abundant salt in the sea?

• calcium chloride
• potassium chloride
• magnesium chloride
• sodium chloride

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

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

• depth
• latitude
• temperature
• salt content

Which process increases the salinity of water?

• runoff from land
• formation of sea ice
• precipitation
• melting of sea ice