Due to its energy consumption, desalinating sea water is generally more costly than fresh water from surface water or groundwater, water recycling and water conservation. However, these alternatives are not always available and depletion of reserves is a critical problem worldwide.[5][6] Desalination processes are usually driven by either thermal (in the case of distillation) or electrical (in the case of reverse osmosis) as the primary energy types.
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I think its B or c not really sure sorry if i dint help
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the french monarchy lost power
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I really don't know. as I am first here so that I am unable to answer you right now but I can assure you I will answer you soon.
I think it's, the Mauryan Empire expands
