There is no life on earth without water. Life almost certainly originated in water. From conception to birth, a baby is created in a sac of water (amniotic fluid) that protects and protects the fetus from physical harm. The birth of a baby is heralded by the “breaking of the waters” after the baby has been fed breast milk that is 90% water (Nagin, 2008). Definition of WaterWater in its pure form is a clear, colorless, odorless and tasteless liquid. It can exist in three states of matter: solid (ice), liquid and gaseous (vapour). The chemical formula of water is H20 which is interpreted as 2 atoms of hydrogen and oxygen in a 2:1 ratio. The following diagram illustrates the formula for water using symbols: (Iowa State University) Diagram showing the states of water: Seavey (1998) Water in its natural form is found in oceans, seas, inland lakes, and artificial dams, in rivers, streams and even underground. The water found in these reservoirs is continually replenished through the cynical precipitation system. Water Cycle Diagram: (Evans, 2009) Ocean and marine water are home to a diverse range of aquatic life, including edible fish and crustacean species that play an important role in the food supply chain. Ocean and sea water are used in the production of sea salt, a product sold commercially around the world. The highest percentage of fresh water in lakes and dams is used for agricultural purposes. It is used for watering livestock and, where possible, can be used for irrigation purposes. Some dams and lakes are built specifically for the generation of hydroelectric power... middle of paper... many people and contribute to the development of associated infrastructure. The ability of water to create solutions is used for washing. The importance of water in personal hygiene cannot be underestimated. Humans need to wash their bodies regularly to feel fresh and to wash their hands to minimize the risk of cross-infection. The uses of water on Earth continue to expand. Physiotherapists use water to treat musculoskeletal disorders and midwives are experiencing the benefits of water birth. These examples use the heating and cooling effects or properties of water. In some religious sects, water is used for baptism and cleaning because it is considered sacred. In philosophy it is one of the four classical elements of the earth, together with earth, fire and air; this signifies the importance of water on earth.