The rest goes on lawns, showers, etc. A household toilet flushes about 150 litres of water per day. A continuously dribbling tap wastes 600 litres of water per day. An average garden sprinkler uses 1000 litres per hour. Natural water has in it small amounts of dissolved mineral salts, which give it a taste.
Pure water is tasteless.
THE smallest building block of water is the water molecule . This comprises two hydrogen atoms attached to an oxygen atom in a V-shape, with an angle of 104 o . It is polar , that is the oxygen atom has a negative electrical charge while the two hydrogen atoms are positive. Also, it is attracted quite strongly to other water molecules by hydrogen bonds . These bonds are ten times weaker than typical chemical bonds, but strong enough to make water liquid at room temperature, while a similar compound, hydrogen sulfide, lacking hydrogen bonds, is a gas.