Hello!
Water exists on other planets in the solar system. Life exists only on Earth because water exists as a liquid on Earth.
Why?
The boiling point of water is 100 °C and the freezing point is 0 °C. A normal temperature on Earth is 25 °C, meaning that water is generally found in the liquid state on Earth.
Liquid water is essential for life because it is at the same time an essential molecule for photosynthesis (the basis of all energy processes needed for life), and a medium where nutrients and waste circulate in living beings.
Have a nice day!
