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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Humanities – 12 marker – Marine Pollution. Marine Ecosystem - the sea. Pollution – When harmful substances make the air‚ land or water dirty. Pollutant – A harmful substance that causes pollution‚ such as exhaust fumes. There are many different causes of marine pollution. I am going to analyse all the different ways in which marine pollution happens‚ and the effects that this has on the environment‚ and if there are any solutions. People exploit the sea in a number of ways‚ such as for leisure
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Global Warming Is Debatable‚ But Global Pollution Is a Fact When we hear the term global warming we tend to think of the enormous hole in the ozone layer‚ but what it really is the earth’s average measured temperature and why it changes. Scientists explain that green house concentrations‚ solar variation‚ and volcanoes negatively affect our earth. This isn’t including the human aspects in which we are damaging our earth’s atmosphere. There are several reasons why researchers state that humans
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Water Pollution Water – The Elixir of Life Can you imagine life without water? Take a minute and think about it. We need water for all our daily essential activities – drinking‚ bathing‚ cleaning… In fact‚ every living thing on this planet needs water Water pollution And what do we do with this vital resource? We take its all important ability – we all know that water can dissolve many of the thing that we dump in it – to make it a giant rubbish bin. In fact‚ we even throw things
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Plastic pollution Plastics are very convenient products that we use in our every day life and for most people it would be difficult to imagine a plastic free world. It is everywhere: used for water bottling purposes‚ food covering‚ parts that make up our daily items such as cell phones‚ clothes‚ and hospital equipments. With so many convenient methods for the use of plastics‚ many of us fail to recognize the dangers of plastic pollution which starts with industrial pollution‚ continues with its
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SOIL POLLUTION INTRODUCTION Soil is the thin layer of organic and inorganic materials that covers the Earth’s rocky surface. The organic portion‚ which is derived from the decayed remains of plants and animals‚ is concentrated in the dark uppermost topsoil. The inorganic portion made up of rock fragments‚ was formed over thousands of years by physical and chemical weathering of bedrock. Productive soils are necessary for agriculture to supply the world with sufficient
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Environmental Pollution Samantha Arrieta SCI/256 November 5‚ 2013 Analila Lucero Environmental Pollution As an associate-level environmental scientist‚ many concerns have risen in regards to the environmental‚ climate‚ economical and social consequences. Because of overpopulated cities‚ there have been some negative factors. The focus to address these issues could be in addressing the weaknesses in already existing laws with stronger enforcement. In the following‚ I will present a summary
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What Is Soil Pollution? [pic] What Is Soil Pollution? Soil pollution results from the build up of contaminants‚ toxic compounds‚ radioactive materials‚ salts‚ chemicals and cancer-causing agents. The most common soil pollutants are hydrocarbons‚ heavy metals (cadmium‚ lead‚ chromium‚ copper‚ zinc‚ mercury and arsenic)‚ herbicides‚ pesticides‚ oils‚ tars‚ PCBs and dioxins. Until the 1970s‚ there was little talk of soil pollution and its devastating effects. In the 1980s‚ the U.S. Superfund was
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Plastic Pollution Introduction The world population is living‚ working‚ vacationing‚ increasingly conglomerating along the coasts‚ and standing on the front row of the greatest‚ most unprecedented‚ plastic waste tide ever faced. Washed out on our coasts in obvious and clearly visible form‚ the plastic pollution spectacle blatantly unveiling on our beaches is only the prelude of the greater story that unfolded further away in the the world’s oceans‚ yet mostly originating from where we stand: the
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Vehicular Pollution problems in India There are three broad sources of air pollution from human activities: stationary or point‚ mobile‚ and indoor. In developing countries especially in the rural area‚ indoor air pollution from using open fires for cooking and heating may be a serious problem. Industries‚ power plants etc. are the cause of stationary air pollution. But in urban areas both developing and developed countries‚ it is predominately mobile or vehicular pollution that contributes to
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