WATER.
Water is transparent and colorless chemical substance that is the main constitute of earth lake oceans and stream .
the chemical form of water is H2O.
In the chemically water had 2 atom of hydrogen and 1 atom of oxygen.
water is the most necessary in human life even anybody who lived on earth they all need water to live because the body needs more water in body.
human body needs almost 71% of water to establish him.
In other word we can not live without water even we can not expect live without water.
water cover 71% of the earth surface.
BIOLOGICALLY WATER DEFINITION.
water is a unusually good solvent for a large verity of substance and is an essential component of all organisms being necessary for most biological process unlike most substance water is less dens as ice then as liquid form thus ice floats on liquid form.