amount of gas used . There are a regulator is used to control pressure from the tanks to the required pressure in the hose. The flow rate is then adjusted by the operator using needle valves on the torch. Accurate flow control with a needle valve relies on a constant inlet pressure to it. Most regulators have two stages: the first stage of the regulator is a fixed-pressure regulator whose function is to release the gas from the cylinder at a constant intermediate pressure‚ despite the pressure in
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REPORT OF INDUSTRIAL VISIT Letter of Transmittal 31-Oct-2013 To The Head of the Discipline Chemistry Discipline Khulna university‚ KHULNA Dear Sir‚ Sub: Report of the One – Day industrial visit On receiving the letter of permission from Bashunddhara Cement Industries Ltd. Mongla‚ students of Chemistry Discipline with five faculty members went on an industrial visit Bashunddhara Cement Industries Ltd. Mongla on 05-010-13. We all assembled at the university at 8 a.m. and left the university
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Air Pollution Hamza Akouayri Class: 600 Robyn Conner Date Air Pollution Air pollution has been a big issue in the entire world. Air pollution occurs when the air includes dust‚ fumes or gases. Air pollution is the accumulation of hazardous substances into the atmosphere. These substances that cause air pollution are called pollutants. In effect air pollution is one of the biggest problems‚ which are threatening people and earth. People breathe in polluted air. Every second people
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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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Plastic Plastics are used on a daily basis throughout the world. The word plastic is a common term that is used for many materials of a synthetic or semi-synthetic nature. The term was derived from the Greek plastikos‚ which means “fit for molding.” Plastics are a wide variety of combinations of properties when viewed as a whole. They are used for shellac‚ cellulose‚ rubber‚ and asphalt. We also synthetically manufacture items such as clothing‚ packaging‚ automobiles‚ electronics‚ aircrafts‚ medical
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of types of pollution. Industrial pollution is the air‚ water‚ and chemical pollution caused by industries. There has always been pollution. Industrial pollution began when our country went through the Industrial Revolution. Most all parts of the world are affected in some way by industrial pollution. Big cities with steel mills‚ power plants‚ heating plants‚ or railroad stations feel the direct effects of industrial pollution. The smog‚ smell‚ and contamination of food or water are some direct
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Factors that Affect Soil Nutrients Nutrient availability can be influenced by several factors and these include: 1. Soil Ph: The relative concentration of the hydrogen irons and or hydroxyl irons may either increase or decrease nutrient availability. 2. The Presence of Other Nutrients: The essence of the various mineral salts will either increase or decrease the other mineral salts in the soil. 3. Leaching: This encourages the draining of mineral salts from the topsoil to subsoil thereby depriving
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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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Air Pollution * Pollutants enter the air from various sources‚ but burning of fossil fuels contributes the most to air pollution. * Exhaust fumes from vehicles contains soot (tiny carbon particles)‚ lead (from cars using unleaded petrol)‚ carbon monoxide‚ oxides of nitrogen and hydrocarbons due to the incomplete combustion of fossil fuels. * Burning of fossil fuels in the combustion engines of vehicles and electrical power stations also releases large amount of carbon dioxide into the
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Term Paper on Environmental Pollution Prepared by: Joeren S. Rapista Submitted to: Mrs. Nena Visto Environmental Pollution Introduction I – Environmental Pollution A. Definition B. History II – The kind of pollution and their effects A. Air Pollution B. Water Pollution C. Solid Waste Pollution D. Noise Pollution E. Lead Pollution Effects Solution Bibliography “What is Environmental Pollution?” With Philippine progress
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