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evaporation
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Which is not a process the decreases the salinity of seawater?
Evaporation is a process that increases the salinity of seawater, not decreases it. Other processes that decrease the salinity of seawater include precipitation, melting of icebergs, and the input of freshwater from rivers.
How are density and salinity related?
Density and salinity are directly related in seawater - as salinity increases, the density of seawater also increases. This is because dissolved salts and other substances in seawater add mass without significantly changing the volume, thereby increasing the overall density. Conversely, a decrease in salinity will lead to a decrease in density.
What is one factor that decreases salinity in seawater?
Salinity in oceans decrease when near a river because the river adds fresh water, which lowers the percentage of salt in the water, causing the salinity to decrease.
What causes the density of seawater to increase?
The density of seawater increases due to an increase in salinity (amount of dissolved salts), decrease in temperature, and increase in pressure. These factors lead to a higher concentration of molecules in the water, making it denser.
How does the salinity of sea ice compare to the salinity of normal seawater?
Ice has zero salinity. When it is frozen, the salt is pushed out. Therefore, since the salinity of normal seawater is about 35 ppt, it has 35 ppt more salinity than seawater.
What are 2 main factors that influence density if seawater?
Temperature and salinity are the two main factors that influence the density of seawater. Colder seawater is denser than warmer seawater, while seawater with higher salinity is denser than seawater with lower salinity.
Does an increase in the salinity of seawater result in an increase or decrease in density?
An increase in the salinity of seawater results in an increase in density. This is because the addition of salt (salinity) adds more mass to the water without significantly increasing its volume, leading to a denser solution. Consequently, higher salinity water is heavier than lower salinity water, impacting ocean circulation and marine life.
What is the average salinity of seawater by weight?
The average salinity of seawater is about 35 grams of dissolved salts per kilogram of seawater, or 3.5% by weight.
What is the salinity of seawater with chlorinity of 19.65 per mil?
To calculate the salinity of seawater from chlorinity, you can use the relationship that salinity is approximately 1.805 times the chlorinity. Given a chlorinity of 19.65 per mil, the salinity would be roughly 35.4 grams per kilogram (or per mil) of seawater. Therefore, the salinity of the seawater with a chlorinity of 19.65 per mil is about 35.4 per mil.
Which of the following causes the density of seawater to increase?
Seawater denssity will increase as salinity increases. A less significant increase can result from temperature variations (colder is denser until freezing starts). Even smaller changes would occur with depth as the seawater is slightly compressible. As density is measured as mass/unit volume local gravity does not enter into the process.
Which process does not add salts to seawater?
Storms at sea. The evaporated water falls back into the ocean with no net effect on salinity.
Is the following sentence true or false the average salinity of seawater is 35 percent?
False. The average salinity of seawater is actually around 3.5%, not 35%.
