01/01/2022
Basic Knowledge About Water!!!
Water or H2O, is a liquid necessary for the life of most animals and plants. A binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below zero degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent. The part of the earth's surface covered with water (such as a river or lake or ocean). There are 3 atoms in a water molecule, 2 hydrogen atoms (H), and 1 oxygen Atom (O).
Over 70% of our earth's surface is covered by water. 97.5% of all water on earth is salt water. Only 2.5% is fresh water, and less then 1% is drinkable. 70% of fresh water is frozen in the icecaps. Water makes up to 60 percent of the human body.