Question

Are oceans all salty?

Answer 1

Hint: Salt and salinity are the words which represent the amount of salt which is present in 1000 gm of the water. Generally salinity is going to express in ‘parts per thousand’ in short form ppt. The three parameters temperature, density and salinity are interconnected.

Complete answer:
- In the question it is asked, are the oceans all salty.
- At the initial stage of the formation of the earth oceans are slightly salty.
- As the time goes on the rain water makes the salts which are present on the earth to dissolve in it.
- The rainwater after dissolving the minerals on the earth surface reaches the oceans at last.
- In this manner a huge amount of salt is added to the oceans every year.
- One more reason for the high salinity of ocean water is the evaporation of the water from the oceans.
- In summer time the water from oceans evaporates and leaves the salt in the oceans itself.
- This also makes the ocean water more salty.
- Therefore all the oceans on the earth are salty in nature but all oceans do not contain the same salinity.
- The salinity of the oceans is going to depend on the surrounding concentration of the minerals in soil.

Note:
The salinity of the ocean water won’t be the same. The salinity of the ocean water at the poles and at the equator is low and the salinity is more at mid-latitudes. The concentration of the salt in oceans varies with temperature and evaporation.