The true value of water today is largely underestimated.
 
Water is an inorganic substance whose functions, within biological processes, cannot be done by any other substance. Therefore, it is irreplaceable and its characteristics have made it something essential in our society and have turned into a valuable possession since the early stages of humanity. 
Water has important implications to an economy at the national level: not only is water necessary to the human body and for other purposes, but it is also an important input to energy, industrial and agricultural production, as well as transportation.