Final answer:
Desalination is the process of removing salt from ocean water to produce fresh water using various methods, including reverse osmosis, but it comes with significant costs and environmental consequences.
Explanation:
Desalination is the process of removing salt from ocean water to produce fresh water for human use. This can be done through methods like boiling, filtration, electrodialysis, and reverse osmosis. While desalination provides a solution for freshwater scarcity, it is expensive and energy-intensive, leading to environmental impacts.
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