Q. Desalination of sea water is effected by

A
Diffusion
B
Reverse osmosis
C
Osmosis
D
Plasmolysis
Solution:

A process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure.

Reverse osmosis is a process that removes foreign contaminants, solid substances, large molecules and minerals from water by using pressure to push it through specialized membranes. It is a water purification system used to improve water for drinking, cooking and other important uses.

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