Ocean Salinity

The concentration of dissolved salts in seawater:

(a)  

Answer explanation

Identify the two (2) main dissolved components in water:

• Na

• Cl

• Mg

• Ca

• K

On average, sea surface salinity is:

• 35 ppt

• 1 ppt

• 100 ppt

• 50 ppt

• 330 ppt

Answer explanation

The dead sea surface salinity is:

• 35 ppt

• 1 ppt

• 100 ppt

• 50 ppt

• 330 ppt

Answer explanation

Which of the following will increase ocean salinity:

• Evaporation

• Sea ice formation

• Precipitation (Rain)

• Runoff

• Icebergs melting

Which of the following will decrease ocean salinity:

• Evaporation

• Sea ice formation

• Precipitation (Rain)

• Runoff

• Icebergs melting

Tags

NGSS.MS-ESS2-4

Match the following

• Brackish water

• 20 ppt

• The Dead sea

• 340 ppt

• Atlantic ocean

• 33 ppt

• Tap water

• 0 ppt

Answer explanation

Why does the Dead sea have such high salinity?

Answer explanation

The Dead sea is located in an area with high rates of evaporation and not a lot of precipitation.

Tags

NGSS.MS-ESS2-4

The two (2) main sources of salt in the ocean:

• weathering of rock

• volcanoes

• outer space (meteorites)

• living organisms (shells)

• Human waste (salt in feces)

Tags

NGSS.MS-ESS2-2

Which of the following are factors that impact the density of water?

• Temperature

• Salinity

• Depth (pressure)

• Biodiversity

• Distance from shoreline