Now-a-days, water scarcity is becoming a prime problem. To compensate the need, various strategies are being carried out by the Governments at national and international levels. One such effective technology is Desalination of sea water. Which principle is followed in their technology. Define it.

Explanation

Desalination of sea water is being effectively carried out by the Reverse Osmosis. In Reverse osmosis, the water molecules are forced by applying pressure from lower concentration to higher concentration through a selectively permeable membrane .