Water

Water

    This is where I am collecting travel information on water.

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	Video about 5 Gallon Water Bottle Travel Tip to Save Money ... "Drinking water is a major expense for travelers and tourist, this video shows how I buy a five gallon bottle of water for one U.S. Dollar.
	Water Filters ... "Water Filters - Water filtered for drinking water around the world.
	Cheapest Drinking Water Sold In Plastic Sacks ... "The cheapest drinking water, and often the coldest is sold in one-half liter plastics bags all over the planet.
	Water Pitcher Is A Convenience For Travel ... "Carrying a Water Pitcher Is A Convenience For Trave, you can buy larger bottle of water than use the small pitchers for convenience.l

    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.

     Water covers 70.9% of the Earth's surface, and is vital for all known forms of life. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products.

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

    Clean drinking water is essential to humans and other lifeforms. Access to safe drinking water has improved steadily and substantially over the last decades in almost every part of the world. 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 freshwater is consumed by agriculture

Water