plastic water bottle‚ coca cola glass bottle‚ and/or a larger tea can. The sorter should work as such that the materials are placed in the sorter‚ and then sorted out into individual containers without any human interaction with the device. The glass bottle should not break‚ so this needed to be taken into account when deciding on a design for our sorter. The sorter also had to be less than or at 1m x 1m x 50cm in size. The sorter needs to be safe‚ creative‚ sustainable‚ be under $100 in total cost
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Water Filtration There is a wide range of filtration methods currently being used all over the world. Some can be dangerous to handle and very reactive while others can be used in an any day household. Although no filtration method is perfect‚ combining different forms of filtration can provide near-perfect water. One note to take is that most of the time the more that is filtered‚ the pricier the method is. Three very effective methods of water filtration are “Ion Exchange”‚ UV light‚ and
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Abstinence programs Do they work? Advertising Should certain kinds of ads be banned in the interest of health/morality/annoyance – alcohol‚ cigarettes‚ prescription meds‚ etc…? Africa Why so many wars? What’s the solution? Airplane accidents Who is responsible? Should families of victims be entitled to compensation? Airport security Should the government use invasive pat-downs and body scans to ensure passenger safety or are there better methods? Al Qaida Has U.S. policy actually spread
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Water and me Water is a colourless‚ transparent and odourless liquid which forms the seas‚ lakes‚ rivers‚ and rain and is the basis of the fluids of living organisms. It is a chemical compound whose formula is H2O. It covers 71% of the earth’s surface and is necessary for every known organism to live. 97% of the total water found on the earth lies in the oceans. The rest of water is in the form of glaciers and ice caps (2.1%)‚ ground water (0.6%)‚ inland water (0.2%) and water vapours (0.001%).
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preservation‚ and in the last century for lowering the freezing point of water(History of Salt). In pure water 0 degrees celsius is the normal freezing point of water. Ice will melt just as fast the water will freeze. You won’t see the melting and freezing processes as long as they are balanced and equal. Adding salt or any foreign substance to the water upsets the fragile equality between freezing and melting. Less of the water molecules reach the surface of the ice in an amount of given time. The
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RIVER POLLUTION River is very important because it can provide clean water and can act as a main source of protein to human beings. Most of the drinking water consumed by the people of the world originates from the river. If the river has been polluted‚ then the tarnished river water needs to be filtered through a series of intricate and money-consuming process. The picture above clearly shows that the pollution of water happened because of the ignorant act of dumping rubbish and toxic
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MARINE POLLUTION By: Naveen Prasad Yerra subbarayudu AGENDA • Introduction • Types of pollution Cause Effects INTRODUCTION • Harmful foreign contaminates entry in to ocean like chemicals‚ particles‚ industrial‚ agricultural and residential waste‚ noise. • Creates a disturbance in the ocean chain • Major portion of marine pollution are land based TYPES OF MARINE POLLUTIONS Pollutants Entering The Oceans 3% 10% 20% Air Pollution Farm Runoff Litter Sewage 5% 20% 10% Offshore
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One of the environmental problems today is air pollution. Air pollution is a mixture of solid particles and gases in the air (). Air pollution not only hit local but‚ is a major quality problem all over the world. Some of the main issues in Georgia are pollen‚ car emission‚ company pollution‚ and chemical waste. In the county I resided in pollen and emission is the high rated problem. The problem with air pollution is affecting the lives on earth causing health problems. I personal never had issues
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Chemistry Essay on Air Pollution Air pollution is a serious and severe consequence towards people not using natural resources correctly and effectively. Air pollution refers to the introduction of chemicals and biological materials or any particulate matter that can cause harm towards humans and other living organisms. Air pollution in Beijing is especially severe. The air quality in Beijing is already very bad. According to the U.S. air pollution monitor‚ tests shows that the air quality index
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GAS WELDING Gas welding is a process that use fuel gases and oxygen to weld and cut metals. Uses: 1-welding and cutting metals 2-in Stone Work for flaming 3-in the glass industry for fire polishing 4-in jewelry production How we use it : The apparatus used in gas welding consists basically of an oxygen source and a fuel gas source it’s pumped through hoses and get out to cut or weld the used metal and there are two cylinders one of them contain oxygen and we can control
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