Why does ocean water have a limited use for humankind?

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Please find below the solution to the asked query                     

Due to very high salt content in ocean water it is not useful for any day to day activities and we depend on freshwater for the same. Only 3% of all the water found on Earth is freshwater. It is a resource which we must use carefully as it responsible for sustaining life on our planet.

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because ocean water contain salt in it
 
  • 4
it contains salt in it
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