Question

3. "There is greater variation of salinity in the partly or wholly enclosed seas". Give reasons.​

Answer 1

Answer:

There is a greater variation in the salinity of partly enclosed seas such as Caspian sea, Mediterranean sea, Persian Gulf, and Read sea.

Explanation:

It happens because the water does not mix with the seawater quickly nor does it get penetrated by the water currents.

The water flowing on the surface evaporates maximizing the salinity of the water but as it enters the sea the salinity reduces to 37%.

Answer 2

The variation of salinity in the partly or wholly enclosed seas as water does move freely.

Explanation:

• Salinity is defined as the ratio of the salts dissolved in seawater and is the total amount of the solid matter in grams and is expressed as PPT/M. This variation of salt in seawater also impacts the physical properties of the oceans and the marine organisms.

• The more saline water freezes slowly as compared to the less saline water other factors like the variation in sea temperatures, amount of rainfall, and density of seawater. Other factors like the rate of evaporation, prevailing winds and ocean currents.

• Due to the less or, no movement of seawater the enclosed seas tend to have higher rates of salinity like the Persian sea, Caspian sea, and Medi­terranean sea have salinity above 39‰. They possess seasonal variations of 1 to 3%.

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• brainly.in/question/10927921 answered by Wajahatkincsem.