The winter of 1984-85 was particularly cold in Europe. The northern part of the Black Sea, froze, which is rare in the normally mild climate. The Adriatic Sea, located east of the Black Sea, has just as cold of a winter but never froze. The Black Sea has an unusually low salinity of about 18ppt. What would you say about the salinity of the Adriatic Sea

This shows that the salinity of the Adriatic Sea is greater than the salinity of the black sea.

Explanation:

The seas can freeze, as shown in the question above, however, it is important to note that the salinity level of the seas interferes with the freezing temperature of the seas. The greater the amount of salt in the sea water, the lower the temperature required for the sea water to freeze. This can be seen in the above question, where, at the same temperature, the black sea froze while the adriatic sea did not freeze, therefore, the salinity of the adriatic sea is greater than the salinity of the black sea.