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Correct Answer: (C)
it operates at a comparatively high temperature
Explanation: reverse osmosis operates at a comparatively low temperature. all the other options are correct. it is simple and reliable process, relatively energy efficient. the life of an spm is about 2 years and it can be easily replaced within a few minutes.
Explanation by: Mr. Dubey
reverse osmosis operates at a comparatively low temperature. all the other options are correct. it is simple and reliable process, relatively energy efficient. the life of an spm is about 2 years and it can be easily replaced within a few minutes.
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