Where does water come from?

Water is formed when two parts Hydrogen bond with one part Oxygen. Water is formed and destroyed in many locations including plants during photosythesis, in stellar supernovae, and through other chemical and nuclear reactions.

In very basic terms, winds pick up moisture from waterways and oceans. This moisture as ions, hydrogen and oxygen, collect in the clouds. When enough ions form, we can have rain showers to thunderstorms with or without hail, or in winter, we have sleet to snow. The rain runs off into waterways and oceans and some evaporates from the ground surfaces. Again, winds pick up moisture, carrying it in the clouds and the cycle continues.

Communities developed dams and reservoirs to collect rainwater, plus accessing rivers and streams. This feeds water treatment plants that deliver water through pipes to homes and businesses.