volcanic hazards include gases‚ lava and pyroclastic flows‚ landslides and earthquakes and explosive eruptions. The eruptions‚ while sometimes are relatively quiet they produce lava flows that creep across the land moving between 2 and 10 miles per hour. These resulting lava flows stream molten rock which destroys everything in its path. It usually moves slowly enough the people can move out of its way. These eruptions can trigger other natural hazards such as earthquakes‚ mudflows and
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Gas exchange is the movement of respiratory gases across a membrane. It is the delivery of oxygen to the body‚ and the elimination of carbon dioxide from the body .The reason why gas exchange takes place because oxygen is one of the most essential requirements of life‚ without which organisms on Earth would not survive. Living organisms generate energy from food through the process of respiration. This allows humans and other organisms to perform their daily tasks. Oxygen is used in mitochondria
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problem statement-3 The Bhopal Gas Tragedy of December 3‚ 1984 is one of the most hazardous industrial accidents in history. The exposure of around 500‚000 people to 42 tonnes of toxic methyl isocyanate gas was a nightmare come true for all resulting in deaths in numbers that could never have been imagined from industrial accidents. All this and the after-effects could have been prevented if proper precautionary measures had been taken beforehand. Despite of an accident on such a large scale
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only did poisonous gas change the experiences of war‚ but also the type of warfare. Instead of riding around on horses freely‚ soldiers had to use protection in order to evade the deadly chemicals. So‚ quickly‚ both sides developed gas masks. At first‚ soldiers held chemically treated cotton pads over their noses and mouths. Later they wore fabric face masks soaked in chemicals‚ and finally soldiers on both sides wore respirators with charcoal filters.("Technology.") These gas masks were the new
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Greenhouse gas emission What is greenhouse gas? A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. Many greenhouse gases occur naturally‚ such as water vapor‚ carbon dioxide‚ methane‚ nitrous oxide‚ and ozone. Others such ashydrofluorocarbons (HFCs)‚perfluorocarbons (PFCs)‚ andsulfur hexafluoride (SF6) result only from human industrial processes. Greenhouse gases act like a blanket around Earth‚ trapping energy in the atmosphere and causing
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In October and November I read a book called "Four Miles to Pinecone". I think it’s a good book and I have to write an essay about it. In this essay I am going to tell you about the conflicts that the main character‚ Tom Barry‚ encountered and how he handled them. First‚ I am going to talk about friendship and a conflict involving friendship in this book. Tom and Mouse were best friends. They went to Donnelly High School and lived in St. Paul. One day‚ while Tom was working at the grocery store
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Gas Law Problems Boyles Law 1. A gas occupies 12.3 litres at a pressure of 40.0 mm Hg. What is the volume when the pressure is increased to 60.0 mm Hg? 2. If a gas at 25.0 °C occupies 3.60 litres at a pressure of 1.00 atm‚ what will be its volume at a pressure of 2.50 atm? 3. To what pressure must a gas be compressed in order to get into a 3.00 cubic foot tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure? 4. A gas occupies 1.56 L at 1.00 atm. What will be the volume
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The purpose of this lab was to use gas chromatography to determine the relative amounts of the three components of gas products from the dehydration reaction of 1- and 2-Butanol with sulfuric acid and the dehydrobromination reaction of 1- and 2-Bromobutane with potassium tert-butoxide. E1 reactions are two-step unimolecular reactions. The first step of an E1 reaction occurs when a leaving group‚ which consists of a weak base‚ leaves an organic compound‚ leaving an intermediate carbocation. In the
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WHAT IS COAL SEAM GAS (CSG)? CSG is a naturally occurring methane gas which is known as Coal Bed Methane (CBM). It is a-by product of ancient plant matter that has formed over millions of years by the same natural processes which produce coal. Not long ago this gas was identified as a major problem in the underground coal mining industry due to it’s high flammability despite this‚ it is now recognised as a very profitable resource. The coal seams are generally filled with water and it is the
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The global oil and gas industry also involves the exploration and production of commodity and energy trading‚ pipeline monitoring and renewable energy. Petroleum is proved to be one of the most valuable commodities in the world today and a vital factor in the sustenance of industrial civilization. Crude oil production accounts for a significant amount of the world’s oil consumption‚ approximately 53% in the Middle East‚ 32% in Europe and Asia‚ 44% in South and Central America‚ 41% in Africa and
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