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A simple example is: rain water (fresh water) flows towards the sea, dissolving chemicals out of the rocks and soil it flows over. This slightly chemical solution enters the sea. As water evaporates from the sea, so the chemicals are left behind, so causing the saltiness of sea water. Obviously, such a change can only occur over an extremely long time.

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Related Questions

Is an ocean a freshwater?

No Oceans are not Freshwater, they are salt water


How is ocean water different from freshwater?

Ocean water has salt in it, Freshwater does not.


Are lake and ocean water a like?

No. Lake water is freshwater and ocean water is saltwater.


Can salt water from the ocean be changed to freshwater by the water cycle?

no it can not because the minerals in the ocean are at a higher level then fresh water.


Is a bay fresh or salt water?

A bay is a body of water bordered on 3 sides by land, and by definition the "4th side" is the ocean. Whether it is saltwater or freshwater will depend on where the water is from. If the bay is of an ocean, it will be of saltwater. If it is of a freshwater lake or river, it will be of freshwater.


What is the main difference between ocean water and freshwater?

salinity


What differs a sea from an ocean or a kake from a river?

The difference in bodies of water is usually where they are located and the type of water they contain. The difference between a sea and ocean is just that a sea is attached to an ocean and surrounded by land. A lake is usually freshwater and located in a natural depression while a river usually flows over a long distance one way.


Is the Atlantic Ocean fresh or salt water?

Like all oceans and seas, the Atlantic Ocean is salt water.


What is the area where a freshwater river or stream enters the ocean?

The area where a freshwater river or stream enters the ocean is called an estuary. It is a coastal area of brackish water formed when freshwater enters the ocean.


Where is the most of the water on located?

Most of the water is found in the ocean.In the ocean (freshwater on Antarctica).


What is the only fresh water part of an ocean?

Icebergs are the only freshwater part of an ocean. When icebergs melt, it results in a decrease in the salinity of ocean water.


How do you get freshwater in the ocean?

Where a fresh water river joins and flows into the sea