Answer :

Lipimishra2
There are many chemicals in ocean water that make it salty. Most of them get there from rivers carrying chemicals dissolved out of rock and soil. The main one is salt. The salinity of the ocean varies from place to place, especially at the surface. Some parts in the ocean have much rainfall. So, the freshwater gets added to ocean water and dilutes it and reduces its salinity.There are parts which receive less rainfall but warm and dry winds cause a lot of evaporation.  In the process of evaporation the water vapour rises in to the atmosphere.  It leaves the salt behind so the salinity of water increases. 
BrainlyShanu

[tex]\huge{\bold{\underline{\boxed{\boxed{Hello\:Brainly\:User!}}}}}[/tex]

[tex]\huge{\bold{\underline{Answer:}}}[/tex]

  • Salinity is defined as total amount of dissolved salts in sea water.

  • It is calculated as amount of salt (in grams) dissolved in 1000 gms of sea water and usually expressed in "ppt" (parts per thousand).

  • Salinity differs from one water source to other.

  • For example:-salinity of fresh water(ponds,rivers etc..) is 0-5 ppt, brakish water (estuaries, Swamps etc..)

  • The main reason for these differences can attributed to :-

  1. Rate of chemical erosion of bed rock.
  2. Rate of evaporation.
  3. Presence of biological elements (plants and animals).

  • For example, if rate of evaporation is high, the amount of salt gets accumulated is high leading to high salinity.

  • Example:- dead sea has salinity of 238%.

[tex]\bold{\huge{\boxed{Hope\:It\:Helps\:You}}}[/tex]

Other Questions