Which of the following reduces the salinity of water?

Answer: D. Both B and C

Reverse osmosis and electrolysis reduces the salinity of water.

Solution

Carbon Filter- Activated carbon is used to remove chemicals causing objectionable tastes or orders to water such as H₂S.

Reverse osmosis- Reverse osmosis is the best method of water softening. It purify water without the use of chemicals

• It gives us clean and pure water by removing all the impurities present in water
• It also reduces the salinity of water.

 Electrolysis

• Electrolysis is the process  of splitting the water into hydrogen and oxygen with the help of an electrolyser.
• It reduces the salinity of water.

Hence reverse osmosis and electrolysis reduces the salinity of water.

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