One of five things that need water are fish For Example, > because they bath in it, eat in it, get out waste in it, hunt in it, and they also lay eggs in water, and almost for everything, they also pretty much have to do everything in water, and every single little thing that they do, is pretty much in water all of the time, and it is also never on land without water because they could die instantly without water, and also they could also die in pretty much in a few seconds out of the water, and straight on to dry land and then, in a blink of an eye, and then snap, a fish dies in dry land . That is how important water is to every single kind of fish that it living. Also with humans, we need water to bath, mix food, and also for their or our survival of our lives. Another one is that pets need water for their survival, because they need to eat and drink, and they also need to bath in it. Also plants need things that involve water to survive, and also for their own lives.