Water is the essential component of all life. It comprises 70% of the Earth's surface, 75% of
the human body, 90% of blood and sap. 97% of Earth's water is in the oceans, 2% is frozen in icecaps, 1% is fresh, but much of this is inaccessible, deep in the Earth. From what is
left, we use 98% for industrial purposes and agriculture, only 2% for the nutrition and health
of every living organism.