ADVANTAGES Plastic is very useful in the building and construction‚ electronics (laptops wouldn’t work well if they were made from glass)‚ packaging (gladwrap)‚ transportation industries. Very easy to make - water bottles‚ plastic bags‚ pens‚ cups etc etc The main advantages of plastic materials are also the reason why plastic is such a problem. It lasts forever and it is very cheap to make. When I say it last forever‚ I mean it does not biodegrade. There is a flotilla of plastic the size
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Use of Plastic bags Modern science has helped us in making our lives more comfortable and easy. It has given us everything and more than we wanted. Plastics are one of the greatest inventions of modern science. Plastics play a major role in our lives. The inventors of it little knew about it’s harmful consequences that we are facing now as they thought it to be a boon to mankind. Today they are a great threat to the environment. Everywhere around us we find plastic bags as a carrier of all kinds
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1. Cellulose‚ starch‚ and glycogen are very similar‚ yet very different. Describe the process by which each of these molecules is formed. Why does the subtle difference in how the simple sugar monomers are bonded in starch and cellulose affect how the two molecules are used? Cellulose is built from glucose molecules bonded covalently together through a process known as hydrolysis. Hydrolysis is a chemical process in which a molecule of water is added to a substance. Each alternating glucose
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First Speaker Assalamualaikum Wr.Wb. We are from grup two as affirmative team. I’m Mega Rezkiyanti‚ I’m standing here as the first speaker‚ Devi Safitri as the second speaker‚ Mimi Yunita H. as the third speaker‚ and Lukman Natsir as Reply speaker. Ladies and gentleman‚ I would like to give our motion today‚ Our motion today is this house would The National Examination is one of the requirement of students pass in the final. National exam is not familiar in the world of education in Indonesia
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Anti-Plastic and Zero Garbage Campaign Naocha * Three cheers to the recent goodwill initiative taken up Anti-plastic campaigners’ group‚ "Blue and Green". Back-up and support from various sections of society‚ organization‚ NGOs shows the awareness of the health hazardous and dreadful consequences of using plastic. As we all know that regular and prolonged dependence on plastic by the common people pushed the plastic items one of the most polluting agent destabilizing the ecological balance of nature
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changes came about to help the prevention or containment of building fires. As building engineering progressed‚ popular flammable building materials were replaced with non-flammable steel and concrete. Urban engineering led to the installation of water mains and hydrants. Public fire departments are formed and outfitted with specialized equipment. Throughout the
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Millions of plastic bags are given out to consumers by supermarkets and stores to carry their goods in. They are also cheap‚ light‚ durable‚ easy to carry and in many cases‚ free. The most commonly used shopping bag is made of High Density Polyethylene (HDPE). This type is used in the majority of supermarkets and stores. After these bags are used‚ they often end up in landfills or as litter‚ roughly only three percent of plastic bags is actually recycled per year (Planet Ark‚ 2011). The materials
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“Welcome to the world of the plastic beach”. This is the title of a song on the Gorillaz Album Plastic beach. But for The community of Gorillaz and the band it is much more. The plastic beach is a fictional location that the band came up with to be a harbor that they could live on. It is an island in the middle of the pacific ocean that is made up entirely of plastic bottles and waste. The characters of Gorillaz discovered this mountain of garbage when they were escaping the clutches of bruce willis
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and Engineering‚ ISSN 1934-8959 Conversion of Plastic Wastes into Fuels Antony Raja and Advaith Murali Department of Chemical Engineering‚ Sri Venkateswara College of Engineering‚ Sriperumbudur 602105‚ India Received: October 23‚ 2010 / Accepted: November 10‚ 2010 / Published: June 10‚ 2011. Abstract: Plastics have woven their way into our daily lives and now pose a tremendous threat to the environment. Over a 100 million tones of plastics are produced annually worldwide‚ and the used products
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Renewable energy is energy that originates from natural sources‚ which is a continuing and nonpolluting energy that is replenished due to its perpetual natural motion. These sources are commonly solar‚ geothermal‚ wind and tidal energies. Comparing different countries’ use of renewable energies -- in Portugal this year‚ close to 45 percent of its electricity will come from renewable energy sources (Rosenthal‚ 2010). This compared to 10.1 percent in the United States (U.S. Energy Administration
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