2007년 9월 26일 수요일

Were you aware? about water.

◎ There is the same amount of water on Earth today as there was when the Earth was formed.
◎ The water from your faucet could contain molecules that dinosaurs drank.
◎ Water is composed of two elements: Hydrogen and Oxygen. 2 Hydrogen + 1 Oxygen
equals H20.
◎ Nearly 97 percent of the world's water is salty or otherwise undrinkable. Another 2 percent is locked in ice caps and glaciers. That leaves just one percent for all of humanity's needs - all its agricultural, residential, manufacturing, community and personal needs.
◎ Water regulates the Earth's temperature. It also regulates the temperature of the human body, carries nutrients and oxygen to cells, cushions joints, protects organs and tissues and removes wastes.
◎ 75 percent of the human brain is water and 75 percent of a living tree is water.
◎ A person can live about a month without food, but only about a week without water.
◎ The average total home water use for each person in the U.S. is about 50 gallons a day.
◎ The average cost for water supplied to a home in the U.S. is about $2 for 1,000 gallons, which equals about 5 gallons for a penny.
◎ Water expands by 9 percent when it freezes. Frozen water (ice) is lighter than water, which is why ice floats in water.
◎ Human blood is 83 percent water. Human bones are 25 percent water.
◎ Each day, the sun evaporates 1,000,000,000,000 (a trillion) tons of water.
◎ In some deserts, rain is so uncommon that the natives do not have a word for it.
◎ In a one hundred year period, a water molecule spends 98 years in the ocean, 20 months as ice, about 2 weeks in lakes and rivers and less than a week in the atmosphere.
◎ Once groundwater is polluted, it may remain that way for several thousand years.
◎ The people in the U.S. use as much as 700,000,000,000 (700 billion) gallons of water each day. (From the American Water Works Association "Blue Thumb" project, 1998)
◎ Every year, American families use between 50,000 and 200,000 gallons of water. (American Water Works Association/Blue Thumb Campaign, 1995)
◎ By planting low-water-use grasses and shrubs, you can cut your lawn watering by 20 to 50 percent. (American Water Works Association/Blue Thumb Campaign, 1995)
◎ When you let water run for 1 minute, 5 gallons of water go down the drain. (American Water Works Association/Blue Thumb Campaign, 1995)
◎ To stay healthy, you need to consume 2-3 quarts of water a day. (American Water Works Association/Blue Thumb Campaign, 1995)
◎ At least 1 billion people must walk 3 hours or more each day to fetch water. (Stockholm Water Foundation)
◎ Nearly 2% of U.S. homes have no running water; in Mexico, 15% of the population must haul or carry water. (National Geographic Society, 1993)
◎ Irrigators in the United States use about 137 billion gallons of water per day; power plants use another 131 billion gallons each day. (National Geographic Society, 1993)
◎ Growing a day's food for 1 adult takes about 1,700 gallons of water. (National Geographic Society, 1993)
◎ Installing a low-flow toilet can save a family of 4 more than 45 gallons of water a day. That's 1,350 gallons a month. (American Water Works Association, 1993)
◎ More than 75% of the water in the United States is located underground. However, 50% of U.S. drinking water is from surface sources. (American Water Works Association, 1993)
◎ More than 800,000 new water wells are drilled each year for domestic, commercial and industrial use. (American Water Works Association, 1993)
◎ The 250 million U.S. residents today have access to about the same amount of water as U.S. residents did 200 years ago, when the population was 4 million. (National Drinking Water Alliance, Blue Thumb Campaign, 1993)
◎ Families turn on water faucets about 70 times a day. (National Drinking Water Alliance, Blue Thumb Campaign, 1993)
◎ It is estimated that up to 50% of the water families use could be saved by implementing simple conservation methods. (National Drinking Water Alliance, Blue Thumb Campaign, 1993)
◎ A leaking toilet may result in the loss of up to 200 gallons of water a day. Even a slow leak in a faucet can waste 15 to 20 gallons of water a day. If you wait a week to fix it, a faucet can drip more than 800,000 drops. (National Drinking Water Alliance, Blue Thumb Campaign, 1993)
◎ One-third of the Earth's people may face either water "stress" or scarcity by the year 2025 if current population trends continue. (Christian Science Monitor, 1993)
◎ In 1990, more than 335 million of the world's 5.3 billion people lived in water-stressed or water-scare countries. (Christian Science Monitor, 1993)
◎ Every minute you spend in the shower uses about 5 gallons of water. (Lincoln, Neb., Water Systems, 1994)
◎ Washing a load of clothes uses about 50 gallons of water.
◎ Brushing your teeth for 2 minutes while running water takes 6 gallons.
◎ About 9.3 gallons of water are used to process one can of fruit.
◎ One acre-foot of water is about 325,900 gallons, enough to fill a football field to a depth of 1 foot or to supply the needs of a family of five for a year.

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