House Gas emissions‚ but very few report their water footprint. Water is as important as the air we breathe. We may be able to survive without electricity‚ but not without water. According to the US Environmental Protection Agency‚ an average US family of four uses about 400 gallons of water from their daily activities such as: taking shower‚ laundry‚ washing dishes and flushing the toilet [1]. This water consumption is without taking into account the water that goes into the food they consume‚ clothes
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Sheet - I (Water Treatment) 1 What are the specifications of water for various industries? 2. Why does hard water consume a lot of soap? 3. What is the difference between soft and sterilized water? 4. State chemical reactions‚ which remove bicarbonate hardness and justify your answer 5. Why is NH3-NH4Cl buffer added in the determination of hardness of water? 6. Discuss which of the following substances will increase‚ decrease or have no effect on the hardness of water: Ca (OH)2
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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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WATER‚ WATER EVERYWHERE Prepared for Prepared by Water makes up almost 70 (seventy) percent of the human body and without it‚ it has been said that the body cannot be sustained and would therefore perish. Every nutrition class or article that I have ever read‚ has always touted water as the “elixir of life”. In my humble opinion that makes water a basic necessity for the sustainment of life and the access to free water a basic right for all people. However‚ if the water was on pre-owned property
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WATER POLLUTION INTRODUCTION Although some kinds of water pollution can occur through natural processes‚ it is mostly a result of human activities. We use water daily in our homes and industries‚ about 150 gallons per day per person in the United States. The water we use is taken from lakes and rivers‚ and from underground (groundwater); and after we have used it-- and contaminated it-- most of it returns to these locations. The used water of a community is called wastewater‚ or sewage. If
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UNIVERSITY WATER POLLUTION NOWADAYS As a matter of fact‚ water covers over 70% of Earth’s surface and it’s a very important resource for people and the environment. But nowadays‚ water is polluted. And water pollution affects drinking water‚ rivers‚ lakes and oceans all over the world. This consequently harms human health and the natural environment . If we don’t have any methods to prevent water resource from polluting‚ we will not have enough water to use in the future. Water is polluted by
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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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GROUND WATER THE WATER/HYDROLOGIC CYCLE * Composed of evaporation from the oceans * Movements of moist air inland * Condensation and precipitation * Run-off on the surface or sub-surface back to the ocean * Plus additional minor cycles * Involves the exchange of water with the atmosphere‚ the earth‚ and the different water forms * Done when clouds gain water vapor from the various water forms * Evaporation – process where water turns into steam or gas when the
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Introduction……………………………………………………………………..…………p2 What do we need water for………………………………………….………………p2 How much water do we use…………………………………………………………p2 What do we use water for…………………………………………….………………p2 Causes……………………………………………………………………………..……P3-4-5 Conclusion…………………………………………………………………………..………p6 References……………………………………………………………………………..……p6 Water: Why is it the most precious resource and what can be done to preserve and conserve it? Water is the world’s most precious recourse. We need water for everything. We need it to drink
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invisible bond that holds water molecules together. Water is a polar molecule‚ so it has plus and minus ends just like magnets that attract each other. When the water molecules align with each other they stick together‚ creating surface tension. You might think that it is the surface tension of the water that holds the skin of a bubble together. Actually‚ the surface tension of water is too strong to make a bubble. You can try yourself to blow a bubble with plain old water‚ it just won’t work! A good
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