The Drake equation is simply the product of a set of factors, estimating the number of active, technologically advanced, communicating civilizations in our galaxy.
“The hydrological cycle has reliably delivered water to the terrestrial ecosystems of planet Earth for millions of years.”
How is water the “universal solvent”? What is viscosity? How does water keep temperatures stable?
Thanks to a unique cluster of properties, water is able to fulfill many roles essential to our living planet.