_________________ is the separation technique used for desalination of sea water ?
Correct answer: B. Reverse osmosis
- A. Thermal diffusion
- B. Reverse osmosis
- C. Adsorption
- D. Absorption
Explanation
Reverse osmosis forces seawater through a semipermeable membrane at pressure greater than its osmotic pressure, allowing water to pass while rejecting dissolved salts. Adsorption and absorption remove selected solutes, but are not the standard primary process for seawater desalination.
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