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 CYCLE Water Cycle‚ also known as hydrologic cycle‚ is a process that is constantly recycling the Earth ’s supply of water. This is important because humans‚ animals‚ and plants all need water to survive. It is controlled by the sun‚ which produces energy in the form of heat. This heat energy causes the water in the world ’s oceans‚ lakes‚ etc. to warm and evaporate. As the water is heated‚ it changes its phase from liquid to gas. This gas is called water vapor and this process is called
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desalination of water water‚ desalination of‚ process of removing soluble salts from water to render it suitable for drinking‚ irrigation‚ or industrial uses. The principal methods used for desalination include distillation (or evaporation)‚ electrodialysis‚ freezing‚ ion exchange‚ and reverse osmosis. In distillation saltwater is heated in one container to make the water evaporate‚ leaving the salt behind. The desalinated vapor is then condensed to form water in a separate container. Although long
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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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flame spectra bands for each water sample. Use the Flame Spectra Chart and Symbol table below to identify the elements (metals) in the different water samples. Symbol | Name | Cd | Cadmium | Li | Lithium | Na | Sodium | K | Potassium | Rb | Rubidium | Cs | Cesium | Hg | Mercury | Ne | Neon | Sample | Number of Bands | Colors Present in Spectrum | Probable Elements In Sample | Spring Water Sample | 8 | Grey‚ aqua‚ yellow‚ red | Li‚ Cd | Bottled Water Sample | 2 | Yellow | Na
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Importance of Water Water is necessary to life. We not only can use it‚ and all living things need water to live. Without water‚ all living things will surely die of dehydration. Water is one of the most important elements for health. The human body build up by more than seventy percent of water. It helps human to digest and absorb mineral of food. It also helps to supply oxygen to the brain and other parts of organs. Following by the report‚ the importance of drinking water is at least
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Water Smart What is the one thing we all cannot live without? I’m sure some people would say food‚ water‚ twitter‚ Facebook‚ and the crimson tide‚ or something else along those lines. Clearly the one I’m going to concentrate on here is water‚ the element that consists in three stages‚ gas‚ liquid‚ and solid. Not one single living thing on this earth can survive without it. I mean your body is made up of about 60% water. Given that it covers ¾ of the entire world you would never consider the possibility
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ganguly‚ Chattejee‚ Dey‚2011). Eichhornia crassipes‚ water hyacinth is a lignocellulosic material which is considered as a good source of biomass. water hyacinth is compose of different fiber s: lignin‚ cellulose‚ and hemicelluloses. INTRODUCTION Water lilies also known as water hyacinth are aquatic plants found in countries with
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