property of water is that it is an excellent solvent. This is because of the chemical composition and physical attributes of water. Since water is polar‚ it allows water molecules to become attracted to different molecules. The attraction can be so powerful that it can disrupt the attractive forces of the different molecules. For example‚ water can be heavily attracted to salt that it can disrupt the forces that hold sodium and chloride‚ therefore dissolving it. The second property of water is its high
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demands of time‚ human beings deliberately exploit the natural environment to improve their quality of life. Unknowingly‚ different environmental activities such as construction of roads dams‚ airports‚ buildings‚ irrigation projects‚ power plants and industries have some negative repercussions on the environment in which man lives. Thus‚ the developmental activities are unsustainable for global ecosystem. But we cannot stop these activities. For the development of the nation‚ these activities are essential
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WATER AS OUR NATURAL RESOURSE There are more than 326 million trillion gallons of water on Earth. Less than 3 % of all this water is fresh water and of that amount‚ more than two-thirds is locked up in ice caps and glaciers. With so much water around it seems like there is enough to see us through for millions of years. But did you know that even water‚ which seems to be in abundance‚ might one day become scarce? Each time you throw something as garbage‚ think of where it will finally end up. Whether
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income‚ interest rates on wealth bearing assets and the price level. An institution that is designed to oversee the banking system and regulate the quantity of money in the economy is known as a Central Bank (Mankiw‚ 2001). In Ghana‚ the central bank is the Bank of Ghana (BOG) and its major functions include the maintenance of monetary stability of the economy (BOG‚ 2011). Policies are instruments used by the central bank to veer the economy into the direction it may believe is best. That policy
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Most water pollutants are eventually carried by rivers into the oceans. In some areas of the world the influence can be traced hundred miles from the mouth by studies using hydrology transport models. Advanced computer models such as SWMM or the DSSAM Model have been used in many locations worldwide to examine the fate of pollutants in aquatic systems. Indicator filter feeding species such as copepods have also been used to study pollutant fates in the New York Bight‚ for example. The highest toxin
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AUTOMATIC WATER PUMP CONTROLLER The automatic water pump controller is used to control the water pump motor. The motor gets automatically switched on when water in the overhead tank (OHT) falls below the lower limit. Similarly‚ it gets switched off when the tank is filled up. Built around only one NAND gate IC (CD4011)‚ the circuit is simple‚ compact and economical. It works off a 12V DC power supply and consumes very little power. The circuit can be divided into two parts: controller circuit and
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WATERGY: A Water and Energy Conservation Model for Federal Facilities By Dr. Sharon deMonsabert‚ P.E. Associate Professor‚ Urban Systems Engineering George Mason University Fairfax‚ VA 22030-4444 Phone: 703-993-1747 Fax: 703-993-1706 Barry L. Liner Consultant - Management Practice Water Research Center (WRc inc.) 7700 Leesburg Pike‚ Suite 400 Falls Church‚ VA 22043 Phone: 703-918-9573 Fax: 703-749-7962 Presented At CONSERV’96 Orlando‚ Florida January 6‚ 1996 ACKNOWLEDGMENTS: The
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Noun | 1. | water pollution - pollution of the water in rivers and lakespollution - undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities | ------------------------------------------------- ------------------------------------------------- http://www.thefreedictionary.com/Water+pollutant ------------------------------------------------- ------------------------------------------------- Effects of Water Pollution
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Salt and the effect it has on water. Do you like salt? Do you put it on your food to make it taste better? Salt doesn’t just make food taste better; it can change the freezing and boiling point of water. I bet you didn’t know that! There’s a reason for that‚ but I’ll explain that a little later. First‚ let’s find out if salt can actually change the freezing and boiling point of water. To do so‚ we need to do an experiment. Now‚ if you’re going to do an experiment‚ you’re going to need a hypothesis
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Mike Khoury Professor Johnson Speech 100 April 15‚ 2013 Topic: Plastic water bottles General Purpose: To Persuade Specific Purpose: To persuade the audience to stop using plastic bottles because of the health concerns and its harmful effects on the environment. Introduction: How many people know that in the Pacific Ocean there’s a huge island consisting of plastic bags‚ bottles‚ and even toys that’s estimated to be twice the size of Texas? For those you didn’t know now you do‚ environmentalists
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