Question

How does salinity vary with freezing and melting?

Question 3 options:

Freezing increases salinity, while melting decreases salinity.


Both freezing and melting decrease salinity.


Freezing decreases salinity, while melting increases salinity.


Both freezing and melting increase salinity.

Answer 1

For every 5 psu increase in salinity, the freezing point decreases by 0.28 degrees Celsius (0.5 degrees Fahrenheit); thus, in polar regions with an ocean salinity of about 32 psu, the water begins to freeze at -1.8 degrees Celsius (28.8 degrees Fahrenheit).

Step-by-step explanation:

Answer 2

Freezing increases salinity, while melting decreases salinity.

took the test lol