Water is the chemical substance with chemical formula H₂O: one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom.

Water is a common chemical substance that is essential to all known forms of life.  It is the most abundant molecule on Earth's surface, composing of about 70% of the Earth's surface as liquid and solid state in addition to being found in the atmosphere as a vapor.

Liquid water is found in bodies of water, such as an ocean, sea, lake, river, stream, canal, pond, or puddle. The majority of water on Earth is sea water. Water is also present in the atmosphere in solid, liquid, and vapor phases. It also exists as groundwater in aquifers.

USE OF WATER

Over 90% of water withdrawn from available sources for use in many developing nations is used for producing food.    Irrigation has been a key component of the green revolution that has enabled many developing countries to produce enough food to feed everyone.

it is the relatively small quantity of water in reserve in the earth (about 1% of our drinking water supply, which is replenished in aquifers around every 1 to 10 years), that is a non-renewable resource, and it is, rather, the distribution of potable and irrigation water which is scarce, rather than the actual amount of it that exists on the earth.

Sites with information that individuals can use at home or work to protect the environment and themselves.

• H2Ouse
  Learn how to conserve water at your house on this interactive website.
• Water Use Efficiency Program
• Actions You Can Take to Reduce Lead in Drinking Water
• Do's and Don'ts Around the Home
  Looking at practices around your house that might be contributing to polluted runoff.
• How to Conserve Water and Use It Effectively
  A narrow-to-wide focus on water conservation
• Fifteen Things You can Do to Make a Difference in Your Watershed
  An Earth Day site to encourage community involvement.
• Private Drinking Water Wells
  Testing the quality of a private drinking water supply
• Source Water Protection -- What Can You Do?
  Office of Ground Water and Drinking Water works with a number of partners to encourage public involvement in source water assessment and protection programs.
• What You Can do to Prevent Nonsource Pollution A handful of documents with information about preventing nonpoint source pollution. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water
• Adopt Your Watershed
  A database of active watershed groups and information on how to start a watershed group.
• Water Efficient Landscape Planner
  The Water Efficient Landscape Planner was developed to explain the advantages and principles of water efficient landscaping. (Downloadable software)
• A Citizen's Guide to Protecting Our Coasts
  Find out more about water pollution and how individuals can make a difference.

Copyright © 2007 luvgreen.  All rights reserved.