This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Water is one of the important substance on the earth . all plants , animal , and humans must have water to survive . if there would be  no water then there would be no life too.apart from drinking ,people have many other uses of the water  such as cooking, washing,keeping houses clean , keeping plants alive . water is also essential for the healthy growth of farms crops and it is also used in the manufacture of many products .it is the most important that the water which people drink and use of other pruposes is clean water . this means that water must be free of germs and chemicals and clear.
                     with two thirds  of earth`s  surface is covered by water and the human body consisting of 75 percent of it .if there would be no water no earth then no can survive beacuse all the functions of our body are dependent on water such as digestion, assimilation, elimination, respiration, maintaining temperature (homeostasis) integrity and the strength of all bodily structures.Your body, being primarily water, requires sufficient daily water replacement in order to function efficiently.