CFreshwater freswater because it helped since the time of the egyptians so far, because without water we could not survive as well it helps the environment one exmple is the water cycle, and other many reason why water is important, water always will be important for the human necessities
What does Earth have that other planets don't, the basis of life? Water, of course. Humans and other mammals drink specifically freshwater though, which is far more precious and less abundant than saltwater.
