Water is a chemical compound with the chemical formula H 2O. A water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure‚ but it often co-exists on Earth with its solid state‚ ice‚ and gaseous state‚ steam (water vapor). Water covers 71% of the Earth’s surface‚ and is vital for all known forms of life.[2] On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚
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Water Availability and Water Quality Water is the most precious natural resource that exists on our planet. Every living thing needs water in order to survive. If water becomes polluted‚ it loses its value and can become a threat to our health. Although we as humans recognize this fact‚ we disregard it by polluting our rivers‚ lakes‚ and oceans. Water availability has become a great concern in our world today. Out of all the available water on earth‚ only 3 % of it is fresh water. 77% of this
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Report on Recycling of backwash and RO reject water Content: Objective Rationale Implementation Details Schematic diagram Process Outcome Conclusions & Recommendations Illustration Objective: To recycle the backwash and RO reject water. Rationale: To recycle backwash and RO reject water for better utilization of water and help in its conservation. Implementation Details: Location: Naagulapalem Plant type:
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Fresh Water Resources Water - Basic Knowledge Made up of 2 hydrogen and one oxygen We can live without food for 50-60 days‚ but we can only live without water for 1-2 days (3 at most) Water resources are scarce Life without water is why we don’t live on mars Hydrologic cycle Describes the continuous movement and distribution of water on‚ above‚ and below earth’s surface By changing its state‚ water moves among great global reservoirs 3 stages: gas‚ liquid‚ solid (ice) When solid‚ it expands
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WATER RESOURCES What are water resources? Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural‚ industrial‚ household‚ recreational and environmental activities. Virtually all of these human uses require fresh water. Only 2.7% of water on the Earth is fresh water‚ and over two thirds of this is frozen in glaciers and polar ice caps‚ leaving only
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SPEECH ON WATER Water is essential for life’. It keeps our body hydrated‚ it is healthy‚ and helps carry oxygen to our brain (blood cell). Without water‚ we would all shrivel up and die. After all‚ our body is made up of 70% water! But there’s more to water than you think. In the next few paragraphs‚ you will learn more about water than you would ever want to and find some amazing facts! You all know that humans are made up of 70% water‚ right? Our lungs‚ brain‚ and heart all are made up of mainly
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Chennai NATIONAL SCIENCE SEMINAR WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES Submitted by A. NAVEEN ANTO‚ Sri Jayendra Golden Jubilee School‚ Sankarnagar - 627 357‚ Tirunelveli‚ Tamilnadu. Date : August 27‚ 2008 CONTENT ♦ INTRODUCTION ♦ WHAT DO WE MEAN BY WATER CRISIS? ♦ WHAT CAUSES & TRIGGERS THE WATER CRISIS ♦ IMPACTS OF WATER CRISIS ♦ REMEDIES FOR WATER CRISIS ♦ CONCLUSION WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES INTRODUCTION Water the elixir of life feeds the planets
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Water is called “the elixir of life”. This is‚ indeed‚ the name which the Indian Nobel Laureate‚ C. V. Raman‚ has given it in his celebrated essay of the same name. The earth comprises two thirds of water and one third of land. Water is essential for all living beings. There can be no life without water. Human beings‚ animals and all kinds of plants all need water. Much of the beauty of the earth is because of the presence of plenty of water on it. The main sources of water are rain‚ rivers
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water is essential for life and keeps body hydrated. it is healthy and helps carry oxygen to our brain. Without water we would all shrivel up and die. Our body is made up of 70% water‚ our lungs ‚brain and heart all made up of mainly water. Water continuously recycled and never lost. Due you know all foods have at least little bit of water in them ex: carrot‚ bread‚ cheese and even egg also. We should drink at least 6 to 8 glass of water every day. Oceans‚Seas‚ Lakes are some of the re-sources
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Ex tension SP553 WATER: Betty Greer‚Ph.D.‚ R.D. Professor Family and Consumer Sciences Important for Life W ater makes up approximately twothirds of the body’s weight and approximately 75 percent of the brain’s weight. Nearly 4 percent of the water in the body is lost through the skin‚ lungs and through urine and stools each day. This water loss must be replaced continually by beverage and food consumption. Sweating causes greater water loss and increases the need to consume
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