Which process removes salt from water?

Which process removes salt from water?

• A. Distillation
• B. Filtration
• C. Desalination
• D. Evaporation

Answer: (C)

Desalination is the process that removes dissolved salts from water, turning seawater or brackish water into fresh water. It works by separating the water from the salts, so the resulting liquid is suitable for drinking or irrigation. Distillation can achieve desalination by heating water to create vapor and then condensing it, leaving the salts behind. Filtration removes only undissolved solids, not dissolved salts, so it doesn’t desalinate. Evaporation by itself turns water into vapor and leaves the salts behind as residue, so it doesn’t produce desalinated water unless paired with condensation (a distillation step).

Desalination is the process that removes dissolved salts from water, turning seawater or brackish water into fresh water. It works by separating the water from the salts, so the resulting liquid is suitable for drinking or irrigation. Distillation can achieve desalination by heating water to create vapor and then condensing it, leaving the salts behind. Filtration removes only undissolved solids, not dissolved salts, so it doesn’t desalinate. Evaporation by itself turns water into vapor and leaves the salts behind as residue, so it doesn’t produce desalinated water unless paired with condensation (a distillation step).