Question

At area 1, a stream empties into the ocean. at area 2, precipitation enters the ocean in the form of rainfall. at area 3, evaporation takes place at the ocean’s surface. in which areas does the salinity of the ocean decrease?

Answer 1

The answer is area 3. Evaporation takes place at the ocean’s surface. Salinity is the measure of salt in water. To decrease salinity, the salt water must move to freshwater. Salinity in rivers, lakes, and the ocean is conceptually simple, but technically challenging to define and measure precisely. 

Answer 2

In area 3, the salinity of the ocean decreases because in this area evaporation takes place at the ocean’s surface.

What is the Salinity of the Ocean?

The salinity of the ocean may be defined as the concentration of salt that is present in the ocean water or any form of water bodies. It is measured in units of PSU (Practical Salinity Unit).

The rainfall always increases the salinity of the ocean because, after rainfall, the water of all rivers and other water bodies flows into the ocean which contains high amounts of salts due to runoff of fertilizers, insecticides, etc. from the agricultural fields.

Therefore, in area 3, the salinity of the ocean decreases because in this area evaporation takes place at the ocean’s surface.

To learn more about Ocean salinity, refer to the link:

https://brainly.com/question/3703109

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