Why is sea water not fit for drinking ?
the water available in seas and oceans is salty.
Ocean water contains about 35,000parts per million of salt.
seawater contains a lot of salt. When salt enters your body it will absorb a lot of water through a process called osmosis. This will cause the water content of your body to fall, which causes serious dehydration.
That is the main reason why we cannot drink pure seawater and why salt is removed from seawater during drinking water preparation processes.
The watre which is present in seas and oceans arent fit for drinking. it is because the water contains excess of salt.
desalinating the ocean water and drinking it is done in many countries like saudi arabia, iraq , libya , egypt,etc.
but desalination is very costly. so it is not possible.
when we drink water of seas without desalinating, the excess of salt enters our body and obsorbs all the water in our body by the process called osmosis leading to dehydration.
so , sea water must be desalinated b4 drinking