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What are two natural processes that increases the salinity of seawater?
Evaporation and the formation of sea ice.
What is a factor which causes the salinity of the poles?
One factor that causes the high salinity of the polar regions is the freezing and subsequent rejection of salt from sea ice formation. When seawater freezes in these cold areas, salt is expelled from the ice, increasing the salinity of the surrounding water.
Went charter fishing in gulf of Mexico and had drinks in cooler with ice and they froze Why?
Likely some seawater got in with the ice, or the ice was made from seawater. Either way, the salt lowered the melting point of the water. Seawater has a salinity of between 3.1% and 3.8%. The melting point of 3.5% salinity sea water is -2 deg C, or 28.4 deg F. This could be low enough to freeze the drinks.
Processes that increase the density of seawater include evaporation and .?
Processes that increase the density of seawater include evaporation and the freezing of seawater into sea ice. Evaporation causes the water volume to decrease while the salinity stays the same, increasing density. Sea ice formation removes freshwater, leaving behind denser saltwater.
Which is a process that decreases the salinity of seawater?
No. In fact, in semi-isolated lagoons, evaporation actually increases salinity. Evaportation, in this case, means that water is leaving the ocean in the form of water vapor. The salt is left behind.
What is the Processes that increase the density of seawater include evaporation?
Processes that increase the density of seawater include evaporation, which removes water and concentrates the salt content. This increased salinity makes the water denser. Other processes that can increase seawater density include cooling and the formation of sea ice.
Would you expect the seawater just below the floating ice in the Arctic Ocean to be higher or lower in salinity then the water in the deep zone there?
When ocean water freezes into sea ice, some of the salt is incorporated into the new ice. Thereafter, that salt drains as brine (salt plus water), causing the layer of water below to be of higher salinity.
Where does most dilution of seawater occur?
Most dilution of seawater occurs at the surface due to processes such as precipitation, river inflow, and melting ice. This leads to a lower salinity at the surface compared to deeper ocean layers. Ocean currents can also mix and dilute seawater over large distances.
Can sea water freeze?
The seawater does freeze. The freezing point of seawater depends upon it's salinity,which is the amount of salt that it contains. Open ocean seawater has a salinity of about 35. Fresh water freezes at 0 degrees Celsius and 35 water freezes at about -2 degrees C. The decrease is linear so that water with a salinity of 17 freezes at about -1 degree C. In the winter large tracts of polar seawater freeze to a considerable thickness.
How does the melting of ice caps near the north pole affect the salinity of the ocean?
The melting of ice caps near the North Pole leads to an increase in freshwater entering the ocean, which then decreases the overall salinity of the surrounding seawater. This can have implications for ocean circulation patterns and marine ecosystems that depend on stable salinity levels.
Where does most dilution of sea water occur?
The most significant dilution of seawater occurs at the mouths of rivers and streams, where freshwater flowing into the ocean decreases the salinity of the surrounding seawater. Additionally, melting ice caps and glaciers are other sources of dilution in polar regions.
Is the ocean water saltier at the poles?
No, ocean water is generally not saltier at the poles. In fact, polar regions tend to have lower salinity due to the melting of ice, which dilutes the seawater. Additionally, freshwater input from rivers and precipitation can also reduce salinity in these areas. In contrast, warmer regions closer to the equator often have higher salinity due to higher evaporation rates.
