Wednesday 12 October 2011

Water


Water is a chemical substance with the chemical formula H2O. Its molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces.Under nomenclature used to name chemical compounds, Dihydrogen monoxide is the scientific name for water, though it is almost never used

Water covers 70.9% of the Earth's surface,and is vital for all known forms of life.On Earth, 96.5% of the planet's water is found mostly in oceans; 1.7% in groundwater; 1.7% in glaciers and the ice caps of Antarctica and Greenland; a small fraction in other large water bodies, and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Only 2.5% of the Earth's water is freshwater, and 98.8% of that water is in ice and groundwater. Less than 0.3% of all freshwater is in rivers, lakes, and the atmosphere, and an even small amount of the Earth's freshwater (0.003%) is contained within biological bodies and manufactured products.

Water on Earth moves continually through the hydrological cycle of evaporation and transpiration (evapotranspiration), condensation, precipitation, and runoff, usually reaching the sea. Evaporation and transpiration contribute to the precipitation over land.

Safe drinking water is essential to humans and other lifeforms. Access to safe drinking water has improved over the last decades in almost every part of the world, but approximately one billion people still lack access to safe water and over 2.5 billion lack access to adequate sanitation. There is a clear correlation between access to safe water and GDP per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability. A recent report (November 2009) suggests that by 2030, in some developing regions of the world, water demand will exceed supply by 50%.Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70% of the fresh water used by humans goes to agriculture.

Well that's the technical stuff out of the way, Water is great, it keeps us alive it is what we mostly are-a big drink of water. It is great for washing faces, hands, babies, cars,windows. Essential for making coffee and tea as well as for making all sorts of diluted fruit drinks.It also cools the earth and when I was younger cooled me down when I played sport. Without it I would be dead along with all my loved ones- we would never have even made it on this planetwithout it- not me, not anyone!

There was someone who claimed that he had living water and offered to give it to anyone who was thirsty. Two waters essential for life -the natural water for physical life and the living water for spiritual life. Go for it and keep filling up on it!

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