Q2 of 11 Page 56

Give reason.

Salinity is low in the land-locked Baltic Sea.

Salinity is low in the land locked Baltic Sea because of the high temperature. The fresh water from the surrounding land gets run off and the salt density is also low. The Baltic Sea is almost land-locked and covers an area of “122415 000 km”. The volume of water is only “21 000 km” because it is shallow.


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1

Tick the correct box according to the salinity of the ocean water

 2

Give reason.

There is higher salinity in the northern Red Sea while lower in the southern.

 2

Give reason.

Oceans located at the same latitude do not have same salinity.

 2

Give reason.

With increasing depth, the temperature of sea water decreases to a certain limit.