Fresh.
Fresh.
Fresh.
Fresh.
Fresh.
It is called "fresh water" (rather than salt water, or brackish water which has substantially more salt in it).
because of salt content water is saline
No, steel is denser than saline water, so a steel pin would sink in saline water.
Yes, because saline water has low freezing point as compare to distilled water or pure water.
The term "saline" just means salty. A saline solution is water with salt in it. (This is not necessarily table salt, NaCl, but can be other salts as well.)
Saline is probably the best example (common salt dissolved in water).
Not sure what you are using saline solution for but i would say that saline solution is steril and water is not.
Approximately 97% of the total water on Earth is saline, found in oceans and seas. This saline water is not suitable for drinking or irrigation without desalination processes.